In Drosophila melanogaster the recessive alleles for brown and scarlet eyes (of two independent genes) produce a novel phenotype so that bw/bw;st/st is white. If a pure-breeding brown is crossed to a pure-breeding scarlet, what proportion of the F2 will be white

Answers

Answer 1
HEHEHEHEHEHEHEHDHDHHDHD

Related Questions

Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and woman who both produce melanin have one child out of three who has albinism. What are the genotypes of the man and woman

Answers

it’s just because the answer is this melanin both of them have it

Albinism is a recessive trait where an individual does not produce the pigment melanin. Albinism is an autosomal disease where the gene which is expressed here is having albinism which is the cause of heterozygous condition.

What is the heterozygous ?

Heterozygous is the condition where the genes in the alleles are different to each other where one has a dominant character and one has a recessive character. The genotypes of the woman and man decide the genotype of the offspring.

The genotypes of the man and woman is heterozygous where the dominant once out of 3 will have the dominant traits for the albinism. The condition will have to be heterozygous as in the Ia Ii gene where the gene for the albinism   will be i gene.

The same genotype for the male where the Ib i gene in which i i the albinism carrying gene here the ii condition of the gene will express the albinism.

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Sets the metabolic rate for the cells of the body describes

Answers

Answer:

BMR ;  Basal Metabolic Rate

Explanation:

MR is  the rate of energy expenditure per unit time by endothermic animals at rest....

Metabolic comprises the process that the body needs to function.

Basal metabolic rate is the amount of energy per unit of timethat a person  needs to keep the body functioning at rest

Why do you think it’s a challenge to reduce fossil fuel usage in homes in the United States? How could the use of fossil fuels affect the biodiversity in neighborhoods and the surrounding ecosystems?

Answers

Answer:

Well,for starters fossil fuels have been there since the beginning of the country's life style in using it.Eg;for household used such as cooking.

Explanation:

The used of fossils may affect the surrounding biodiversity,and ecosystem due to the amount of Carbon Dioxide they emitted when being lit,which contributes to Ozone Depletion,and other global issues

QUESTION 27 in the brain Both sleep and mood are related to levels of O a. endorphins. O b. dopamine. O c. serotonin. O d. marshmallow.​

Answers

Answer:

C) Serotonin

Serotonin, help to stabilize our mood and also helps with sleeping.

White petal color is a recessive trait.

Answers

Answer:

An example of a dominant trait is the violet-colored flower trait. For this same characteristic (flower color), white-colored flowers are a recessive trait.

Explanation:

Identify two means by which meiosis results in genetically unique gametes, and explain why this is important.

Answers

Explanation:

Meiosis is beneficial as it produces gametes that are genetically different to the parent cell, and when the gametes combine the offspring produced is made from combination of genes from both mother and father. The offspring is genetically unique, there is no other organism on the Earth with the exact same DNA sequences on their chromosomes.

What do members of a population have in common? Select all that apply.
O A. They have the same density.
B. They are the same size.
C. They live in the same area.
D. They are the same species.
E. They live at the same time.

Answers

Answer:

E. They live at the same time.

D. They are the same species.

Which statement explains why athletes experience a burning sensation in
their muscles after vigorous exercise?
A. Their muscles have taken in too much oxygen.
B. The conditions in their muscles have become anaerobic.
C. The temperature in their muscles has become too high.
D. Their muscles have become flooded with glucose.

Answers

Answer:

B. The conditions in their muscles have become anaerobic.

Explanation:

In humans, cellular respiration occurs naturally in an aerobic condition (presence of oxygen) but anaerobic respiration can be adopted in specific or extreme cases. One of those cases is after or during a VIGOROUS EXERCISE.

What happens is that, after a vigorous exercise by an athlete, oxygen becomes insufficient in their muscle cells due to high consumption. Hence, their muscle cells switch to anaerobic respiration (lactic acid fermentation), which causes the build up of lactate in the muscle tissues. This lactate build up cause athletes to experience a painful and burning sensation in their muscles.

Hence, it all begins when "conditions in their muscles become anaerobic after an exercise".

Sigmoidal plots of activity versus substrate concentration are exhibited by a. holoenzymes. b. Michaelis-Menten enzymes. c. allosteric enzymes. d. monomeric enzymes. e. isozymes.

Answers

Answer:

The correct answer is C

Explanation:

Allosteric enzyme is an enzyme that has more than one active site on the surface of the enzyme. Generally, the binding to one of these active sites affects the affinity of the other active sites on the enzyme; this causes the enzyme not to follow the Michaelis-Menten's enzyme kinetics. Thus, when the activity versus substrate is plotted on a graph, a sigmoidal curve shown instead of an hyperbolic curve (like other enzymes).  

the impact of grassroots challenges to trash incinerators​

Answers

Yea the impact of grassroots challenges to trash incinerators ;)

What is the closest crop relative of Aloe vera?

Answers

Answer:

lily

Explanation:

aloe perryi

i’m not 100% sure try researching


Which geometric solid is the best model for these cells?
O A. A square pyramid
O B. A sphere
O c. A right circular cylinder
OD. A cube
SUBMIT

Answers

Answer:

D. A cube

Explanation:

Epithelium cells are a type of cell that has a simple cuboidal epithelium that consists of only a single layer of cells that are cube-like or cuboidal in shape.  These cells have large, spherical nuclei present in the center. These cells are cube-shaped cells

hjgvfyufy7uf7y6fy67ufuy

Answers

Answer:

sbuhsushsbjsubyshshsushajjwb

sughsnjsjsjnsjsjshwhwjushsjsjnjsin

shuwihijwijsijsjisijsijsjsjenksinisjsni

What is the answer with explaining

Answers

Answer:

actually I'm not even sure but I would say that the wife cheated

The eurkaryotic cells glycocalyx is..?

Answers

Explanation:

The glycocalyx is a carbohydrate-enriched coating that covers the outside of many eukaryotic cells and prokaryotic cells, particularly bacteria .

A new organism is discovered at the bottom of the ocean. A scientist is determining the composition of elements found in the tissues of the organism.
Which elements will most likely be found?

Answers

Answer:

carbon, hydrogen, nitrogen, and oxygen

The following answers for the Causes and Consequences features are examples and are not intended to represent a comprehensive list. In addition, the sequence of items is not meant to connote relative importance Sort the examples below into the appropriate bin. Think about which factors contribute to the spread of invasive species (causes), the consequences that result from the spread of invasive species, and possible solutions. Reset Help economic costs for control and removal of invasives decline of native organisms due to competition with invasives improved manual or chemical control measures increased global transport and mobility favorable conditions for invasives due to climate change stricter policies aimed at ballast water dumping and other particulars change in community structure and function Causes Consequences Solutions

Answers

Answer:

factors contribute to the spread of invasive species (causes)increased global transport and mobility favorable conditions for invasives due to climate changethe consequences that result from the spread of invasive specieseconomic costs for control and removal of invasivesthe decline of native organisms due to competition with invasives change in community structure and functionpossible solutionsimproved manual or chemical control measuresstricter policies aimed at ballast water dumping and other particulars

Explanation:

Dispersion refers to the change in an organism's range or distribution area. Different ecological and biogeographical processes might be involved in organisms' dispersion. The term "jump dispersion" refers to a few individuals in a short time that can cross a barrier and occupy a new area. In this situation, the establishment is not always for sure. For this to happen, they must reproduce and start a new population of a certain size that can survive the new conditions.  

Biologic Invasions refer to new species that establish in a new area far or out of their original distribution range. Once established, these species might be considered exotic or invasive, according to their reproductive rate, population growth, and interaction with native species.

The exotic species is the one that has been introduced and got to establish, but causes no damage or alteration to native ecosystems.

The invasive species is introduced into a new area, establishes, expands its distribution from the first invaded spot, and overgrows. As they expand, they compete with other native species for resources such as water, place, radiation, exposure, shelter, source of food, among others. Species are considered to be invasive because of their reproductive rate, population growth, and interaction with native species, which provokes huge damages to the native ecosystem.

It is very common for these species to escape and start new populations in the new area, where they have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-, and these factors favor their establishment.

There are some typical steps in an invasion process:

1) Introduction or dispersion to the new area,

2) Naturalization. The new species establishes in the new area. It can grow, reproduce and make use of resources.

3) Overgrowth and uncontrolled expansion.  

4) Interaction with other species.  

5) Stabilization.  

Biologic invasions are natural processes, that occur in small groups of individuals that can expand to other ecosystems. Their expansion is promoted by the appearance or disappearance of barriers.  But these biological invasions have been accelerated by human beings, referring to this as human-assisted invasions. These are the cases in which men transport species from one place to the other for different uses or purposes.

Once a species has become invasive, it turns very hard to eliminate it, especially because it requires big mechanical and economical effort. However, they can be controlled to avoid their wider expansion. There are different ways of controlling invasive species

Mechanical ChemicalBiological

Which is NOT true of smooth muscle? A. They use peristalsis to move substances through tubes. B. They are found in the hollow parts of the body such as blood vessels and the small intestine. C. They can become fatigued. D. They are connected by gap junctions.​

Answers

Answer: the answer is C

Explanation: I been trying to find the same answer for this exact question for acellus and C was the correct answer

Part B
Next, our galaxy can be organized into a galaxy group. This galactic group is a collection of about 50 galaxies that are
gravitationally bound to each other. What is the name of the galaxy group in which our galaxy belongs? As you are
researching, list at least three characteristics that you learned about our galaxy group.

Answers

Answer:

The Milky Way galaxy is part of a group of galaxies called the Local Group. Three characteristics that I learned about our galaxy group is The Milky Way is a large barred spiral galaxy, they come in a variety of shapes and sizes, and  it appears as a milky band of light in the sky when you see it in a really dark area.

Explanation:

Edmentum

The Milky Way galaxy is a member of the Local Group of galaxies named Laniakea . The Milky Way is a massive barred spiral galaxy and  can be seen as a milky band of light.

What are the characteristic feature of the Milky Way?

The Milky Way galaxy is a massive, flat, disk-shaped collection of stars, gas, and dust that spans around 100,000 light-years and is several thousand light-years thick.

The Milky Way galaxy contains every star that we can see with our unaided eyes. The Andromeda Galaxy is the only celestial object visible in the night sky with unaided eyes that is not part of the Milky Way.

It is estimated that the Milky Way is 12 billion years old.

Thus, Milky Way is the galaxy we live in amongst others.


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__________________ moves the respiratory medium over the respiratory surface.

Group of answer choices

perfusion

percolation

ventilation

diffusion

Answers

Answer:

ventilation

Explanation:

Breathing, also known as ventilation, is the process of moving air or water in order to facilitate the gas exchange between the external and internal (body) environment, mostly to eliminate carbon dioxide (CO2) and bring in oxygen (O2). For example, fish are aquatic animals that need to run water over their gills to get the O2 that they need to survive (gills are organs that create a large surface area for ventilation). Moreover, insects ventilate their tracheal system to get O2. Finally, terrestrial vertebrates (i.e., amphibians, reptiles, birds, and mammals) use organs called lungs to exchange O2 and CO2 between their cells and the external environment.

write the function of eustachian tube?

Answers

Answer:

Equalized air pressure.

Explanation:

The function of eustachian tube enables air pressure to be equalized between the outside air and the middle ear cavity. The eustachian tube also known as pharyngotympanic tube that connects the middle ear cavity with the nasopharynx. Eustachian tube is responsible for the aeration of the middle ear system as well as clears mucus from the middle ear into the nasopharynx. Opening and closing functions of the eustachian tube are is very important.

If Sarah had skin vesicles on the anterolateral region of her neck, which peripheral nerve is infected by the virus? To which peripheral nerve plexus does this nerve belong

Answers

Answer: transverse cutaneous nerve

- cervical plexus

Explanation:

The peripheral nervous system refers to the network of the motor and the sensory nerves which helps in connecting the brain and spinal cord to the entire human body. The peripheral nerves control movement, sensation, and motor coordination.

If Sarah had skin vesicles on the anterolateral region of her neck, the peripheral nerve affected is the transverse cutaneous nerve. The transverse cutaneous nerve innervates the skin which covers the anterior cervical region and it brings to the cervical plexus.

Which two physical properties of graphite make it a good mineral for use in pencils?
1. luster and fracture
2. cleavage and color
3. hardness and streak
4. greasy feel and composition

Answers

The answer is 3 3 3 3

The physical properties of graphite which makes it good for pencils is ;  

( 3 ) hardness and streak

Graphite is made up of carbon atoms which are held together by van der waals forces ( weak force ). They are soft and slippery which is why graphite is used in the manufacture of  lubricants. while graphites are used for the manufacture of writing materials such as pencils because of its hardness and streak

Hence we can conclude that the physical properties of graphite which makes graphite good for the production of pencils are hardness and streak

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What are the main sources of greenhouse gas emissions on Earth?​

Answers

Answer:

Globally, the primary sources of greenhouse gas emissions are electricity and heat (31%), agriculture (11%), transportation (15%), forestry (6%) and manufacturing (12%). Energy production of all types accounts for 72 percent of all emissions.

Which area appears only on the posterior part of the body? a)scapular b)patellar c)umbilical d)sternal

Answers

Answer:

Patellar

Explanation:

Answer:patellar

Explanation:

On the posterior side

The space shuttle Endeavor is launched to altitude of 500,000 m above the surface of the earth. The shuttle travels at an average rate of 700 m/s. How long will it take for Endeavor to reach its orbit?

Answers

Answer:

Time taken by space shuttle = 714.28 m/s

Explanation:

Given:

Distance cover by space shuttle = 500,000 meter

Speed of space shuttle = 700 m/s

Find:

Time taken by space shuttle

Computation:

Time taken = Distance / Speed

Time taken by space shuttle = Distance cover by space shuttle / Speed of space shuttle

Time taken by space shuttle = 500,000 / 700

Time taken by space shuttle = 714.28 m/s

What is the answer with explaining and what I put in the empty box

Answers

In the red box it would be ‘bb’ with the trait being ‘b’, this is because the chart above and across from the read box are both ‘b’ so it is bb. The genotype of the offspring is ‘bb’. The offspring in the blue box is the first option, because it has two of the genes.

Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
bb it’s the 2nd one on the bbottom

What is physiological?

Answers

relating to the branch of biology that deals with the normal functions of living organisms and their parts.
The above answer is correct

Compare and contrast the structure of DNA with RNA.

Answers

DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. ... DNA and RNA base pairing is slightly different since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine.

Methanogens are able to live in what enviroment

Answers

Methanogens are found usually in swamps and marshes. Because they dont require oxygen they are able to live in anaerobic conditions
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A total of 25.6 kJ of heat energy is added to a 5.46 L sample of helium at 0.991 atm. The gas is allowed to expand against a fixed external pressure to a volume of 18.7 L .Required:a. Calculate the work done on or by the helium gas units of joules, J.b. What is the change in the helium a internal energy in units kilojoules, KJ? Rewrite the following expanded notation in standard form. 600,000 + 80,000 + 1,000 + 400 + 70 + 5 Log5 =0,699 find log 0,5 true or falseCatholics believe in witchcraft and zodiacs? If the velocity of a body is decreased to 1/2, then K.E. of the body decreases to Use calculus to find the absolute maximum and minimum values of the function. f(x) = 5x 10 cos(x), 2 x 0 (a) Use a graph to find the absolute maximum and minimum values of the function to two decimal places. In a survey of adults aged 57 through 85 years, it was found that 86.6% of them used at least one prescription medication. Complete parts (a) through (c) below.a. How many of the 3149 subjects used at least one prescription medication? (Round to the nearest integer as needed.)b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.(Round to one decimal place as needed.) How many grams of calcium chloride are needed to produce 10.0 g of potassium chloride?CaCl2(aq) + K2CO3(aq) 2 KCl(aq) + CaCO3(aq) Hi can someone answer this question please thank you Which statement is true about matter?a: all matter has volume b: all matter has massc: both A and B.d: all mater has either volume or mass but not both What is the measure of A. 60B. 6C. 42D. 49 Correct the mistakes in this sentenceWe have very little cookies for the kids' party. Could you buy some, please? What type of molecule is shown below? A. AlkyneB. AlkeneC. AlkaneD. Aromatic 1) 18,27 9,756 =2) 6 2,407 =3) 18 5,432 =4) 10 7,602 =5) 13,013 12,5 =6) 972,5 247,451 =7) 83,12 90,2 + 12,3 =8) 46,75 60,13 + 32,50 =9) 254,0187 29,34682 =10)1.015,568 123,712 =no entiendo me ayudan The Marine air-ground task force is Empareja el/la escritora con la descripcin. Match writer with the correct description.1 Era monja y escritora del Siglo de Oro. En el campo de lo lrico, su trabajo es un ejemplo de la literatura barroca espaola. Sus ensayos de la posicin de la mujer son los primeros en el mundo literario. 2 Es considerado la figura ms conocida de la literatura espaola. Es el autor de la primera novela moderna que es una de las mejores obras de la literatura universal, El ingenioso Hidalgo don Quijote de la Mancha. 3 Un poeta y diplomtico mexicano, se le considera uno de los grandes poetas. Sus obras expresaron las ideas revolucionarias y su exposicin El laberinto de la soledad trat de la identidad mexicana post-revolucin. 4 Naci en Nicaragua. Sus obras incluyen la poesa, la novela, una memoria y un cuento para nios. Su primer libro, Sobre la grama, gan el premio de poesa de la Universidad Nacional de Nicaragua.A) Octavio Paz.B) Sor Juana de la CruzC) Miguel de Cervantes Saavedra.D) Gioconda Belli 3. What is the length of MA to the nearest tenth?a) 0.1 cmb) 3.5 cmc) 17.0 cmd) 7.7 cm In year T, a US citizen buys 100 shares of Sonic on the Tokyo stock exchange at 700 yens each. Suppose the exchange rate then is $0.01 per yen. Suppose the price of the stocks falls to 600 yens each at time T +1. Nothing else changes. Compute the change in US external wealth between periods T and T +1 in dollars. Firestone Tires recently paid an annual dividend of $2.00 on its common stock. This dividend increases at an average rate of 3.8 percent per year. The stock is currently selling for $24.00 a share. What is the market rate of return Investiga con autonoma manifestaciones culturales y artsticas de distintas pocas y contextos, y utiliza adecuadamente la informacin recogida de diferentes fuentes, en la elaboracin de crticas escritas, usando un lenguaje apropiado. Ayuda por favor