Answer:
Muscle physiology
Explanation:
Which organisms replicate cells by mitosis?
Answer:
All organisms, both prokaryotes and eukaryotes, can replicate cells by mitosis.
Explanation:
Mitosis is the process of cell division where, from a progenitor cell, two identical daughter cells are obtained. In the human being this process is carried out by somatic cells.
Cell division by mitosis is carried out by all living beings:
Prokaryotic organisms, unicellular, use it as a means to reproduce. Eukaryotic organisms, most of them pluricellular, use it in the processes of growth, development, repair and regeneration of tissues.All living beings can perform mitosis as a process of cell replication, although with different objectives.
If a double-stranded segment of DNA has been found to have 23 purines and 15 thymines, how many guanines are there?
Answer: 4 Guanines
Explanation: Following Chargaff's ratio that describes the ration of purines to pyrimidines as 1:1, if there are 23 purines, it follows that there should be 23 pyrimidines; 15 Thymines should therefore be hydrogen bonded to 15 Adenines by complementary base pairing.
We are then left with 8 nucleotides composed of guanines and cytosines in complementary base pairs. This means that half that number (4) should be guanines and the rest cytosines.
The DNA is a double-stranded molecule, which is made up of purine, pyrimidine, a pentose sugar, and phosphate backbone. Chargaff's rule states that any species will have a stoichiometric ratio of 1:1.
The number of guanines in the double-stranded DNA is 4.
In the DNA, the base pairing occurs as:
The guanines bind with cytosine through hydrogen bonding. The adenine binds with thymine with two hydrogen bonds.In the given nucleotide, there are 23 purines (guanine and adenine). There are 15 thymines in the DNA molecule. Based on the Chargaff rule, the 15 thymines will bind to adenine, leaving only 4 guanines and 4 cytosines. Thus, there will be 4 cytosines left to bond with the guanines to achieve Chargaff's ratio of 1:1.
Therefore, the guanine in the nucleotides will be 4.
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The graphs show the reaction rate for an enzyme across a range of temperatures and pH. Based on these data, this enzyme functions best at what temperature and pH? *
The graph is attacged and the options is as follows:
Temperature of 27oC and a pH of 4
Temperature of 37oC and a pH of 6
Temperature of 40oC and a pH of 8
Temperature of 50oC and a pH of 10
Answer:
The correct answer would be - temperature of 37oC and a pH of 6
Explanation:
The graph 1 shows the relation between the rate of reaction for an enzyme and the temperature of reaction is been represented. In this graph the rate of eaction is highest (point from the slope starts decreasing) at the So, by the options and graph the temperature 37°C(Below 40°C) rate of reaction is maximum.
Similarly, in other graph rate of reaction and and pH has been represented in which rate of reaction is maximum at pH 6. after 6 pH the rate of reaction started decreasing.
What structure is found in viruses but not in cells?
The structure is found in viruses but not in cells is - Capsid, made up of protein around the virus but not present in cells.
Viruses are considered non-living as these are molecules neither these are cells nor they are made up of cells. They do not have any traits of the living organism.
They have genetic material which is RNA.The genetic material of Viruses is enclosed in the protein structure or coat called Capsid.they can not reproduce on their own.Cells have various cell organelles and cell structures such as cell walls, mitochondria, cell membrane, genetic material, and many more but lack protein coat or capsid around them but are made up of cells or a single cell.
Thus, the correct answer is - protein capsid.
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Can you combine an apple and an orange to make a cross hybrid fruit? (Not sure this classify as biology)
Answer:
No
Explanation: Apples and Oranges are different species, therefore they are unable to interbreed. This would only be possible by gene splicing (Gene splicing is a form of genetic engineering where specific genes or gene sequences are inserted into the genome of a different organism) which is incredibly difficult.
how do i turn off the internet while choking bart simpson
Answer:
good question, you don't. Or simply wait untill you finish choking bart
true or false , the mRNA codon UGG is the only codon that codes for the amino acid tryptophan
Answer:
true
Explanation:
what must happen before miosis can begin?
Answer:
Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. ... DNA replication occurs in the same fashion as it does during mitosis. After replication, the homologues are doubled, and each chromosome now has a homologous pair
Please help me on this history please I’m begging also it’s number one not number 2
Answer:
3 Or 2 I think?
Explanation:
So Sorry If It isn't right!
HELP!!!! Two characteristics of most plants are a root system and a shoot system. Most of the structures in these systems
are common to all plants; however, there are some variations. Which structure can sometimes be found as part of
the shoot system?
stems
leaves
roots
flowers
Answer:
Leaves, and flowers
Explanation:
The shoot system is above ground and includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any).
Answer:
ROOTS
Explanation:
ROOT ROOT ROOT ROOT ROOT ROOT because it root
If a de-shelled egg gains weight after being soaked in sucrose solution, what term best describes this solution?
Answer:
The correct answer would be - hypotonic solution.
Explanation:
The egg cell contains more solute than the sucrose solution which makes the sucrose solution a hypotonic or low solute solution. Hypotonic solution is a solution that has low concentration of the solutes than the another solution. This tye of case leads to the movement of the water to, move in the area of high concentration of solutes.
In this case the water will move in to the egg and swell the egg due to the diffusion of water through semipermeable membrane from low solute area to high solute area.
cell transportation that does not require energy is known as _________ transport.
the type of membrane transport that doesn't require energy is known as passive transport some examples are:diffusion, facilitated diffusion and osmosis
Please help!!!!!!!!!!!!!
Some organisms, such as bacteria, reproduce asexually; whereas, other organisms reproduce
sexually. Which statement correctly states why one type of reproduction is beneficial over the
other?
A. Asexually reproduced offspring are more genetically diverse.
B. Asexual reproduction produces offspring genetically different from parents.
C. Sexual reproduction can produce a large number of offspring very quickly.
D. Sexual reproduction produces organisms that are genetically diverse.
Answer:D
Explanation: A isn't right because during asexual reproduction there is no exchange of genetic characteristics thus the offsprings retain the genetic characteristics of their parents and there is no diversity.
Sexual reproduction on the other hand involves the fusion of gametes and the exchange of genetic characteristics thus the offsprings are diverse and are not identical to their parents as is the contrary in asexual reproduction.
Sexual reproduction produces organisms that are genetically diverse.
Sexual reproduction involves the combination of chromosomes from both parents. This combination of chromosomes introduces variation into the population. This combination does not occur in asexual reproduction.
Hence, the statement that correctly states why one type of reproduction is beneficial over the other is that sexual reproduction produces organisms that are genetically diverse.
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Diversity occurs in many places in meiosis. In what process is the first place where the pieces of DNA switch positions with the homologous sister chromatids?
A. Interphase
B.Independent Assortment
C. Crossing Over
D.Anaphase
E. Randomness of egg and sperm meeting
Answer:
crossing over
Explanation:
I had it on a bio exam. i got it right
which kind of cells carry out the process of cellular respiration?
All living cells must carry out cellular respiration. It can be aerobic or anaerobic respiration. Prokaryotic cells carry out cellular respiration within the cytoplasm or on the inner surfaces of the cells, while Mitochondria carry out the cellular respiration in eukaryotic cells. They are also called as the 'Power house' of the cell as they produce the energy needed to the cell to function properly.
by what process in the water cycle does water return to the land
Answer:
commonly speaking precipitation, sometimes runoff from slides and stuff or even seepage
Explanation:
Convection is the movement of material that distributes heat in the Earth's mantle. What arrangement of material may lead to convective motion?
A. Denser material on top of less dense material
B. Less dense material on top of denser material
C. Mixed material with a uniform density
D. Mixed material with a uniform temperature
Answer:
it is less dense on top of denser material. B
Answer:
A. Denser material on top of less dense material
Explanation:
Took a quiz and got it right.
Cells use different processes at different times to provide an organism with the energy that it needs. Spirulina is an autotrophic bacteria that can be found in freshwater and marine environments. Which process takes place in the cells of Spirulina that does not occur in the cells of a human? photosynthesis aerobic respiration anaerobic respiration cellular respiration
photosynthesis
aerobic respiration
anaerobic respiration
cellular respiration
Answer:
I believe it is d, cellular respiration.
Explanation:
Answer:
D
Explanation:
Which best describes the process of evaporation/transpiration in the
water cycle?
O A. Water from the ocean enters the atmosphere as water vapor.
O B. Water on the surface of Earth enters the groundwater supply.
C. Water vapor in the atmosphere returns to the surface of Earth as
liquid water.
O D. Water on the surface of Earth and water lost by plants enters the
atmosphere as water vapor.
Answer:
A
Explanation:
Answer:
The answer is D
Explanation:
Water on the surface of Earth and water lost by plants enters the atmosphere as water vapor
The person above me is wrong I tried it and it was wrong and I tried D and I got it correct
Which of the following base pairs would be found in a cell
The base pair cytosine and guanine is found in the cell. The correct option is D.
What are base pairs?A base pair is a primary component of double-stranded nucleic acids that comprises two nucleobases that are hydrogen-bonded to one another.
They are the foundations of the DNA double helix and make a contribution to both DNA and RNA's folded structure.
Purines and pyrimidines are nitrogen bases that form hydrogen bonds between DNA strands.
Predicated by Chargaff's Rule, they associate together via complementary pairing A::T and G::C. The purines in DNA are the same as those in RNA: adenine and guanine.
The 2 significant pyrimidine bases in DNA are cytosine and thymine, which base pair with guanine and adenine. Uracil supplants thymine and base pairs to adenine in RNA.
Thus, the correct option is D.
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Your question seems incomplete, the probable missing options are:
A) adenine-guanineB) cytosine-thymineC) uracil-cytosineD) cytosine-guanineQuestion 10
A new type of plant was discovered on a newly-formed volcanic island. The island is hunc
miles away from the mainland. Which hypothesis best explains how the plant arrived?
o It was carried there by wind or waves.
O It spontaneously generated.
O It was carried there by humans.
O It was already present in volcanic materials.
What is the Energy source in Plants. A. Fertilizer B. Soil C. Sunlight D. Water
C6H12O6 + 6O2 --> 6H2O + 6H2O
How many total atoms of oxygen are on the reactants side?
SELECT AN ANSWER
6
12
18
2
Answer:
18
Explanation:
6 in C6H12O6 and 12 (6×2) from O2
Therefore, 12 + 6 = 18
ANSWER ASAP
Frederic Griffith used the word transformation to describe the changes in bacteria that he observed. Which is the most useful definition of transformation?
A. a permanent change in gene expression
B. a temporary change in the function or activity of a cell
C. a temporary change in the genetic composition of an organism
D. a permanent change in the genetic composition of an organism
Answer:
D
Explanation:
this is because it's the genetics that undergoes the so called "transformation" not the gene itself
Answer:
D
Explanation:
Just took the test and got it
!!!!PLEASE HelP!!!!
A farmer has decided to dig an artesian well into the unconfined aquifer below his crops. However, water does not fill his well. Why isn't his well working?
A. An artesian well needs the pressure of a confined aquifer
B. An artesian well must be near a lake
C. An artesian well must be near the site of groundwater infiltration
D. An artesian well only works in areas that are going through a drought
Answer:
it is a
Explanation:
i did the test
A farmer has decided to dig an artesian well into the unconfined aquifer below his crops. His well is not working because an artesian well needs the pressure of a confined aquifer. The correct option is A.
What is an aquifer?An artesian well is a deep tube well drilled underground to gather water for human usage. This good type is found in restricted aquifers.
The artesian well differs from the others in that it does not require the use of a pump to raise the water, as the cistern does. The sort of subsurface reservoir causes the water that travels through the tube to naturally spurt to the surface.
The underground reservoir with the qualities required for drilling an artesian well is the product of extremely specialized geological conditions. Gushing wells are caused by the restricted aquifer, as this sort of deep groundwater is known. This type of reservoir is found between impermeable subsurface layers.
Therefore, the correct option is A. An artesian well needs the pressure of a confined aquifer.
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11. During photosynthesis, the proteins Inside
chloroplasts in plant cells absorb energy
from the Sun. Which statement best
describes how photosynthesis follows the
law of conservation of energy?
A. Electrical energy from the Sun is converted
into light energy in plant cells.
B. Light energy from the Sun is converted
into chemical energy in plant cells.
C. Nuclear energy from the Sun is
converted into kinetic energy in plant
D. Chemical energy from the Sun is converted
into thermal energy in plant cells,
Answer:
B
Explanation:
just cause it is i think
Answer:
The answer is B
Explanation:
Use the process of elimination, It is fairly obvious it's not C yeah? so mark C off. D talks about thermal energy which is completely and utterly wrong. Your now left with A and B. There is no electrical energy in plants so B is your answer
The
_layer or earth's surface is called the
which consists of
The
layer or earth's surface is called the
_ which consists mostly of
and
The earth has an inner
that is
and is
Answer:
The outer layer or earth's surface is called the
crust which consists of cool rock
Please help me ?!!!!
Answer:
the last one I am guessing
Explanation:
If right can you give me brainiest
Hope you have a wonderful day:)
The width of a rectangle is 3 inches less than the length. The perimeter is 38 inches. Find the length and the
width.
The length is___
inches and the ____ width is
inches.
Answer:
25
10
Explanation:
Hope this helps:)
Describe the steps in making, packaging, and exporting a protein from a cell
Answer:
First, the ribosome makes a protein. Next, the proteins, gathered in the rough ER, are targeted for export to the Golgi apparatus in a vesicle. Finally, the Golgi apparatus modifies the protein that is than are shipped out of the cell.
Explanation:
