A graduate student studying biology at the University of Nebraska has identified a new species of spider found only in Eastern Nebraska around Omaha. The graduate student determines that the spider has six homologous pairs of chromosomes. How many chromosomes would a cell in that spider have during metaphase of mitosis?

Answers

Answer 1

Answer:

12 chromosomes

Explanation:

Mitosis is a type of cell division that involves the formation of two genetically identical daughter cells. The two daughter cells are genetically identical in the sense that they contain the same number of chromosomes as the parent cell. Mitosis involves four stages namely: Prophase, Metaphase, Anaphase and Telophase.

In the metaphase stage as stated in this question, homologous chromosomes align at the equator of the cell called cell plate, before each chromatids are pulled apart by microtubules at the Anaphase stage.

According to the question, the spider being worked on has 6 pairs of chromosomes, which will align at the cell's equator during metaphase stage of mitosis. Since the replicated chromosomes (chromatids) are yet to separate to opposite poles of the cell, the cell will still contain 12 chromosomes at the metaphase stage.

N.B: Each chromosome contains 2 chromatids or replicated chromosome, which will be separated at the Anaphase stage. Each chromatid will be an individual chromosome after cytokinesis.


Related Questions

what is meant by oesophagus

Answers

Answer:

The oesophagus (gullet) is part of the digestive system, which is sometimes called the gastro-intestinal tract (GI tract). The oesophagus is a muscular tube. It connects your mouth to your stomach.

Answer:

the part of the alimentary canal which connects the throat to the stomach. In humans and other vertebrates it is a muscular tube lined with mucous membrane

​"Acidic" is an appropriate description for four of the following. Which one is the exception?

Answers

Answer:

magnesium hydroxide

Explanation:

is the inorganic compound with the chemical formulaMg( OH)2.it is a common component of antacid such as milk of magnesia

Why it is important to emasculate and bag wheat, oats and groundnut flowers before a cross is made by using another desirable plant.

Answers

Answer:

There are no options in this question but it can be answered using general knowledge. The answer is:

In order to prevent self-pollination or natural cross-pollination of the wheat, oats or groundnut flowers.

Explanation:

The flowers of wheat, oat and groundnut plants have something in common, which is the fact that they are all bisexual flowers i.e. flowers that have both male and female reproductive parts. Hence, they tend to undergo self-pollination i.e. transfer of pollen to female reproductive part on the same flower.

To prevent this from occuring when a desirable trait is wanted during crop breeding procedures, a process called EMASCULATION is carried out. Emasculation is the process whereby the stamen (male flower) or pollen of a plant is removed without destroying the female part of the flower. This is done in order to discourage self-pollination in plants with a bisexual flower.

Also, after emasculation, the flowers are bagged in order to prevent natural cross-pollination i.e. to prevent pollens from other plant from being transferred to the stigma of the desired plants in random manner.

Hence, emasculation and bagging is important to make sure the desired plants are still viable for the crop breeding procedure.

Watch the video and answer the question in 2 or 3 paragraphs. What are the main causes of air pollution? Discuss some effects of air pollution and provide possible solutions to this environmental issue. https://youtu.be/_dTtvtlct9k

Answers

Answer:

Explanation:

Exhaust from vehicles, factories, volcanoes and wildfires are the major causes of air pollution.

Effects of air pollution include many diseases. For example heart disease, lung disease, respiratory diseases etc... They also damage nerves, brain, kidney, lungs, heart etc...

Solution to air pollution:

We should replace the fossil fuels with natural energies like solar, wind, geothermal, hydro etc...

Waste water treatment

Dust control

Hope this helps

plz mark as brainliest!!!!!!

which word of the poem are an example of a simile

Answers

Answer:

I don't know what exactly you are asking so

A simile is comparing 2 thing using "like" or "as"

Example: Her cheeks were red as a rose

Simile is common poetic device. The subject of the poem is described by comparing it to another object or subject, using 'as' or 'like'. For example, the subject may be 'creeping as quietly as a mouse' or be 'sly, like a fox. '

Stickleback fish are collected from a lake in Alaska. 600 from the sample are spineless, which is a recessive trait in the fish. 80 of the fish collected have spines. Calculate:

A. The frequency of recessive alleles in the population (p):

B. The frequency of dominant alleles in the population (q):

C. The percentage of individuals in the population that are heterozygous:

D. Provide an explanation for why so many fish in the lack display the recessive trait:

Answers

Answer and Explanation:

Due to technical problems, you will find the answer and explanation in the attached file.  

The mechanisms regulating sodium and water balance help maintain blood pressure homeostasis. These mechanisms include the renin-angiotensin II mechanism, neural regulation, and ADH.

Match each item to the appropriate category. Keep in mind relationships may be direct or indirect.

Categories:
1. Angiotensin II.
2. Sympathetic Nervous System
3. Both

a. stimulates ADH release
b. stimulates renin release
c. stimuates aldosterone release
d. increases sodium uptake
e. increases water reabsorption
f. stimulates vasoconstriction
g. increases peripheral resistance
h. stimulated by baroreceptors in blood vessels
i. stimulated by low blood pressure or volume

Answers

Answer:

a. stimulates ADH release : 2. Sympathetic Nervous System

b. stimulates renin release : 2. Sympathetic Nervous System

c. stimulates aldosterone release:  3. Both

d. increases sodium uptake : 1. Angiotensin II  

e. increases water reabsorption:  2. Sympathetic Nervous System

f. stimulates vasoconstriction:  1. Angiotensin II.

g. increases peripheral resistance : 1. Angiotensin II.

h. stimulated by baroreceptors in blood vessels:  2. Sympathetic Nervous System

i. stimulated by low blood pressure or volume: 3. Both

Explanation:              

The antidiuretic hormone is one of the hormones released by the hypothalamus (regulator center in the brain) and collected by the posterior hypophysis from where they are then released again to the system.  This hormone, also known as vasopressin hormone, is released by changes in serum osmolarity or blood pressure. The osmotic receptors are located in the hypothalamus, while the pressure receptors are located in the heart, the aorta, and carotids. The amount of hormone secreted depends on these two aspects. Its function is to keep homeostasis and make kidneys conserve or excrete water to regulate its volume. The antidiuretic hormone stimulates water reabsorption when factors such as dehydration or hemorrhages are causing an increase in blood solutes. It might also stimulate water excretion when solutes in the blood are very low or blood pressure is too high.

Aldosterone is another hormone that acts stimulating the sodium ions reabsorption. This hormone production is controlled by a circuit named the renin-angiotensin-aldosterone system. This system is activated by the decrease of blood supply to the kidney, and hence, the decrease in blood pressure and sodium concentration. These factors cause the release of the renin, a proteolytic enzyme that acts on angiotensinogen producing angiotensin I which is converted into angiotensin II. Angiotensin II is a peripheric vasoconstrictor peptide, that can increase the blood pressure when it is circulating in the plasma. It also stimulates the secretion of aldosterone.      

Dr. Payton is a psychiatrist who believes that the source of all
human behavior comes from the unconscious mind. Dr. Payton
likely follows which school of thought in psychologs

Answers

Answer:

The Psychoanalytic School of Thought

Explanation:

Psychoanalysis is a school of psychology founded by Sigmund Freud. This school of thought emphasized the influence of the unconscious mind on behaviour. Freud believed that the human mind was composed of three elements: the id, ego and superego.

Human actions often break large areas if forest or grassland into small remnant parcels that support fewer individuals and ae far apart from one another. Predict how gene flow, genetic drift, and extinction risk would differ between the original and the remnant populations.

Answers

Answer:

Gene flow will be restricted

Gene drift will be higher than in larger populations

Extinction rate will be increased due to the reduction in genetic diversity

Explanation:

Gene flow is defined as the transference of genetic material among populations. In isolated populations, the gene low is null and thereby they have different allelic frequencies, while populations that share genetic material tend to have the same allelic frequencies.

Genetic drift is the change in the allelic frequencies in a population as a result of random sampling. In small populations such as those living in parcels, the genetic drift is higher than in larger populations.

Extinction is the continuous declination in the number of organisms of a particular group (for example, a population or a species), that inevitably leads to the disappearance of this group. In small populations, the likelihood of extinction will be higher than in larger populations, due to the lesser genetic variation and higher genetic drift.

ASAP When ______ is hydrolyzed, it forms _______. A. protein, amino acids B. ATP, ADP C. polysaccharide, monosaccharide D. lipid, triglyceride

Answers

Answer:

The answer is ATP, ADP

Explanation:

When protein is hydrolyzed, it forms amino acids. Thus, the correct option is A.

What is Hydrolysis?

Hydrolysis may be defined as a chemical process that utilizes the molecules of water that involve the chemical breakdown of a compound.

Amino acids are the monomers of protein. These amino acids are linked together by peptide bonds. But the process of hydrolysis breaks the peptide bond between the amino acid sequences and released them significantly in free form.

Therefore, when protein is hydrolyzed, it forms amino acids. Thus, the correct option is A.

To learn more about Hydrolysis, refer to the link:

https://brainly.com/question/4352413

#SPJ5

Which area of the respiratory system is vascularized with the richest capillary network in the body?​

Answers

Answer:

There are from 200-500 million alveoli (mean diameter = 200 micrometers) in adult human lungs

Explanation:

The epithelial cells of the alveolar septum are markedly thinned and the capillary network immediately beneath the epithelium is the richest in the body.hope this helps you :)

Answer:

The answer is alveoli

The root of mutualism, mutual,
means...
A. together.
B. alone.
C. only.​

Answers

Answer:

A. Together.

Explanation:

The root word of mutualism, mutual means together or a thing that many people share.

For example:

Mutualist Symbiotic Relationship refers to a relationship in which organisms are benefited, in other words it is a win-win.

The relationship between the Egyptian plover bird and the crocodile, that is mutualist relationship.

When a meat or something (food) gets stuck in the teeth of the crocodile then the Egyptian plover bird takes it out (like a toothpick).

The crocodile gets benefited.

The bird also gets benefited (its gets its food)

Hope this helps ;) ❤❤❤

Answer:

together

Explanation:

Mutualism is defined as a relationship that benefits two organisms, or it is defined as a doctrine in sociology where mutual aid is beneficial to society and the individual. An example of mutualism is pollination which is when bees take nectar from flowers and then deposit the nectar on another flower.

chapter 1 in microscope biology​

Answers

Answer:

100*

Explanation:

it is a bacteria which needs to be seen under a strong microscope.

Given the gene sequence GGACCGTCGATCTTC, which of the following choices would represent an inversion mutation? A. GGACTCGATCTTC B. CCACCGTCGATCTTC C. GGACCGTCGATCTTC D. GGACCGTCGATCCTT

Answers

Answer:

D. GGACCGTCGATCCTT

Explanation:

Mutation refers to any change in the nucleotide sequence of a gene. Mutation can be of different types depending on how it occurs. According to the question, an INVERSION mutation is a type of mutation in which a segment of a gene gets broken off and reattached in another way on the same DNA. Hence, the only change in inversion mutation is the arrangement of the nucleotide bases on the gene.

Considering the nucleotide sequence: GGACCGTCGATCTTC, the sequence that describes an occurrence of inversion mutation is: GGACCGTCGATCCTT because the segment TTC in the original sequence has been rearranged as CTT in the mutated sequence.

Answer: GGACCGTCGATCCTT

Explanation: mutation means change and there is change in the gene sequence

What is the function of the synapse? It allows information to go from one neuron to another through neurotransmitters. It allows the nerve impulse to travel within the neuron due to neurotransmitters. It allows the cell body to regulate the activities of the neuron. It allows faster transmission of information through the neuron.

Answers

Answer: It allows information to go from one neuron to another through neurotransmitters. :)

Explanation

Which philosopher believed that the soul operated on three levels: reason, will, and desire? A. Socrates B. Plato C. John Locke D. Hippocrates Please select the best answer from the choices provided A B C D

Answers

Answer:

B. Plato

Plato was known as a renowned philosopher in Athens, Greece. He believed that the soul operated on three levels which include Reason, Will and Desire.

Plato was of the notion that the soul was tripartite as a result of it having three levels of operation. He also believed that the soul can never die and will still be in operation and thought even after a person dies.

Answer:

Which philosopher believed that the soul operated on three levels: reason, will, and desire?

A. Socrates

B. Plato

C. John Locke

D. Hippocrates

What alternate form of genes do nucleic acids have that allows them to offer variability?

Answers

Answer:

allales

Explanation:

an allele is the variant from a gene

Answer:

A. allales

Explanation:

Why are G proteins known as guanine nucleotide-binding protein?

Answers

Answer:

G proteins, also known as guanine nucleotide-binding proteins, are a family of proteins that act as molecular switches inside cells, and are involved in transmitting signals from a variety of stimuli outside a cell to its interior. ... G proteins belong to the larger group of enzymes called GTPases.

PLEASE ITS URGENT!
Can someone help me name them!

Answers

Answer:

i filled the thing out for you. i didnt know what grade you were in so i just put the cell names in.

Explanation:

What is a factor of nutrient collapse?

Answers

Answer:

The nutrient collapse  that atmosphere is change that food we eat and no is paying attention.

Explanation:

Nutrient collapse in the agriculture research it the mos important foods been getting nutrition less, they generally vegetables, fruits minerals and vitamin, protein content has to past.

The researching choosing crops for higher yields and nutrition and wheat to less nutrient,fruits and vegetables that form protein to calcium, iron and vitamin are varieties choosing to grow.

Atmosphere may be change and food we eat,and human needs a oxygen and they plants need a carbon dioxide, and the level the atmosphere is rising.

Carbon dioxide is the atmosphere in turn the contributes to the plant growth,and food production an quality of food is better.

Human nutrient linked through a quality of plants and affected the balance of nutrient in rice, crop and they people rely on, human chain need to measured and understood.

It simply not discussed to the agriculture and health public or nutrient communities.

Animal migration on savannas is often governed by

distance
reproduction
rainfall
fire

Answers

Answer:

The answer would be rainfall.

Explanation:

The reason why this is the answer is because rain is essential for survival in such a hot and dry climate. Droughts are quite frequent in the savanna and the lack of water leads to the death of many organisms.

Answer:

Rainfall is what often governs animal migration on savannas.

Explanation:

Brainlies please

INDEPENDENT, DEPENDENT, OR CONTROL?
You water three sunflower plants with salt water. Each plant receives a
different concentration of salt solution. A fourth plant receives pure water.
After a two-week period, the height is measured.
1. Is the height the independent variable or dependent variable?
2. What is the control group in this experiment?

Answers

Answer:

dependent variable

the control group is the fourth plant with pure water.

Explanation:

When an enzymatic reaction is in progress, do you expect to see an increase, decrease or no change in each of following: (i) substrate (ii) product (iii) enzyme

Answers

Answer:

During Enzymatic reaction, enzymes binds to a substrate to form a which then forms the product.

Substrate: A reactant in an enzymatic or chemical reaction is called substrate. Product: The final outcome or substance after completion of reaction is called product.Enzyme: Enzyme helps to increase the rate of reaction and act as a catalyst.

Change in shape of substrate, product and enzymes depends on the temperature outside the optimal range which affect bonding between enzyme and substrate. Enzymes definitely changes their size when bind to substrat and the process is called induced fit which increases the rate of reaction.

During an enzymatic reaction, their is an decrease in the concentration of substrate, an increase in the concentration of product, and no change in the concentration of the enzyme.

What is enzymatic reaction?

A reaction, which is mediated with the help of an enzyme is termed as enzymatic reaction. A substance, which functions as a catalyst in living organisms and regulate the rate at which the chemical reactions takes place is known as an enzyme.

The enzymatic reactions follows the lock and key model, in which the free enzyme combines with the substrate and forms the enzyme-substrate complex, this is further catalyzed into the enzyme-product complex, from which the free enzyme and product get discharged. The product never further binds with the free enzyme.

In the reaction, the substrate get used up thus its concentration decreases, while the formation of product takes place thus its concentration increases. However, there is no change in the concentration of the enzyme as it does not get used up in the process.

Thus, in enzymatic reaction, substrate decreases, product increases, and enzyme concentration remains the same.

Find out more information about enzymatic reaction here:

https://brainly.com/question/24618218

During the Paleocene-Eocene Thermal Maximum, when global surface temperatures spiked, we observe temperate forests ____________________, insect herbivory of temperature.

Answers

Answer:

The overview of the problem concerned is listed below.

Explanation:

Mostly during Paleocene Eocene Temperature Optimum, we consider temperate vegetation momentarily relocated towards the poles whenever global average surface temperature jumped, bug harvesting temporarily escalated, as well as coral reef crashed.The level of variations in climate or temperature was as sluggish as it is today, which suggests that such past occurrences are likely to overestimate the effects of rising temperatures nowadays.

Increase occur in the insect's population due to increase occur in global surface temperature.

During the Paleocene-Eocene Thermal Maximum, when global surface temperatures increase, we observe temperate forests having more population of insects due to favourable temperature for the growth of insects.

The productivity and distribution of forests could be affected due to change occur in the temperature, precipitation and the amount of carbon dioxide in the air. As the temperature increases the population of insects also increases which leads to increase in biodiversity of forest so we can conclude that increase occur in the insect's population due to increase occur in global surface temperature.

Learn more: https://brainly.com/question/17177308


A scientist wants to find the percent of teens that like the taste of "brand X"lemonade over "brand Y" lemonade. She conducts a taste test of
500 teenagers. She gives each teen a bottle of lemonade with the labels showing the brand of each lemonade. She asks each teenager to taste
each brand after drinking water in between. She finds that 50% of teens like brand X and 50% like brand Y lemonade. Why are the results
of the survey most likely unreliable?

a

Adults were not interviewed.

b

Not enough teens were interviewed.

с

The investigation was based on taste,

d

The lemonade labels introduced bias.​

Answers

Answer:

c

Explanation:

beacuse the investigation was beacesd on taste  

ABO blood type is examined in a Taiwanese population, and allele frequencies are determined. In the population,
f (IA) = 0.30,
f(IB) = 0.15, and
f (i) = 0.55.
What are the frequencies of the various genotypes and various phenotypes in this population? Assume Hardy-Weinberg equilibrium.

Answers

Answer and Explanation:

Due to technical problems, you will find the answer and explanation in the attached file.

If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?
only males
neither males nor females
only females
O both males and females

Answers

Answer:

only females

Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

DNA is transcribed to messenger RNA (mRNA), and the mRNA is translated to proteins on the ribosomes. A sequence of three nucleotides on an mRNA molecule is called a codon. As you can see in the table, most codons specify a particular amino acid to be added to the growing protein chain. In addition, one codon (shown in blue) codes for the amino acid methionine and functions as a "start" signal. Three codons (shown in red) do not code for amino acids, but instead function as "stop" signals.
Sort the following ten codons into one of the three bins, according to whether they code for a start codon, an in-sequence amino acid, or a stop codon
AUG, UAG, UAA, UGA, AAA, UGC, AUC, CAC, GCA, ACU

Answers

Answer:

start codon - AUG

in-sequence amino acid - AAA, UGC, AUC, CAC, GCA, ACU

stop codon - UAA, UAG, UGA

Explanation:

From the amino acid chart, the start codon is represented by the codon AUG which also code for the amino acid methionine. There are three stop codons including UAA, UAG, and UGA. The stop codons signal the end of the translation process of the mRNA. Every other codon within the mRNA chain codes for different amino acids except methionine.

Hence, using the attached amino acid chart:

start codon - AUG

in-sequence amino acid - AAA, UGC, AUC, CAC, GCA, ACU

stop codon - UAA, UAG, UGA

The amount of matter something has is

Answers

Answer:

mass

Explanation:

mass is the amount of matter an object is made up off.

[tex] \LARGE{ \underline{\underline{ \sf{\pink{Required \: answer:}}}}}[/tex]

The amount of matter a substance have is known as Mass. Mass is a fixed everywhere in the universe. Sometimes we get confused between Mass and weight, but we should remember that Weight is the force with which a body is attracted towards earth. And above is the definition of mass. It is measured by common balance.

~ [tex] \large{ \pink{ \sf{FadedElla}}}[/tex]

Imagine that plaque uniformly coats the walls of the blood vessel in the diagram. Based on the diagram, what is the reduced area inside the blood vessel? Round your answer to the nearest tenth. The equation for the area of a circle is A = πr2, where A is area, π ≈ 3.14, and r is the radius. Recall that the radius is half of the diameter.

Answers

Hello. You forgot to put the image that complements this question.

The image is attached below:

Answer:

A = 38.465.

Explanation:

To arrive at the result you will have to perform a very simple calculation, using the fromula shown in the question above.

First, it will be necessary to find the diameter of the figure, to

 therefore, you will have to divide, which will result in 3.5.

You can now replace the values in the formula: A = (3.14) (3.5) ² = (3.14) (12.25)= 38.465.

Answer:

12.56

Explanation:

Other Questions
Given the lengths of two sides of a triangle, find the range for the length of the third side. (Range means find between which two numbers the length of the third side must fall.) Write an inequality. 13.2 and 6.7 There are 8 marbles in a bag, each with a different color. How many different groupsof 4 marbles can we select? a pack of 4 choclates cost 1.80 pounds how much is the price per unit What is the verb phrase in the patient is being treated by the medical director What are the dimensions of the matrix? Why was the tariff of 1828 so unpopular in the South? Isabelle bought some stationery. 1/3 of them were pencils. 5/8 of the remainder were erasers and the rest were rulers. The cost of the stationery is - a Pencil: $1.20, an eraser: $1 and a ruler: $0.50. She spent a total of 169.50 on all stationery. How much more did she spend on erasers than rulers. Which of these scientist is know for his work in understanding climate change a : edwin hubble b : christian doppler c : warren washington d : charles kuen kao The awesome beauty and stifling ugliness of the world is bound up in this original moment which is still present today:_________ A stock has had the following year-end prices and dividends: Year Price Dividend 1 $ 43.37 - 2 48.35 $ .60 3 57.27 .63 4 45.35 .80 5 52.27 .85 6 61.35 .93 What are the arithmetic and geometric average returns for the stock? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) When a battery is connected to a lightbulb properly, current flows through the lightbulb and makes it glow. How much current flows through the battery compared with the lightbulb The P-value is the probability of getting a test statistic at least as extreme as the one representing the sample data, assuming that ________. Why are G proteins found in cell membrane of the cell ? True or False: The more that the labor supply decreases in response to a decrease in wages, the larger are the supply-side effects of an increase in tax rates (that is, the decrease in output is largerdue to a tax increase). What is the yield to maturity on a bond that pays annual coupon rate of 14%, has a par value of $1,000, matures in 10 years, and is selling for $911? At the last moment Mollie, the foolish, PRETTY white mare who drew Mr. Jones's trap, came mincing daintily in, chewing at a lump of sugar. my question is: does Pretty an adjective or an adverb in this context? which excerpt from the poem is an example of a transformation? In the months following her graduation from college, Amber has grappled with feelings of hopelessness, worthlessness, and despair. In the past several weeks, these feelings have intensified, and Amber has withdrawn from all interaction with her friends and family. Based on this short description, it would appear that Amber is: You recently organised an event to raise money for a local charity.Explain what and why you chose for your particular charity.Write a paragraph. Read the sentence.The Canary Islands are a popular vacation spot for people from Finland, a chain of seven islands off the coast of Africa.What is the best way to rewrite the sentence?A-The Canary Islands, a chain of seven islands off the coast of Africa, are a popular vacation spot for people from Finland. B-A popular vacation spot for people from Finland, a chain of seven islands off the coast of Africa are the Canary Islands. C- ***NOT CORRECT**The Canary Islands are a chain of seven islands off the coast of Africa, a popular vacation spot for people from Finland. D-A chain of islands off the coast of Africa, a popular vacation spot for people from Finland, are the Canary Islands.