You want to determine whether short wings in fruit flies are the result of a dominant or recessive mutation. You cross a short-winged fly stock with a long-winged fly stock (which is considered to be wild type or / ). The progeny have a 1:1 ratio of short to long wings. You then allow the F1 short-winged flies to mate. The F2 progeny have a phenotypic ratio of 3:1 short to long wings. Short wings are likely the result of:

Answers

Answer 1

Answer:

a dominant mutation

Explanation:

A monohybrid testcross is a cross-breeding experiment used to determine if an individual exhibiting a dominant phenotype is homo-zygous dominant or heterozygous for a particular phenotypic trait (in this case, wing length). In a monohybrid testcross, a 1:1 phenotypic ratio shows that the dominant parental phenotype was a heterozygote for a single gene that has complete dominance. Moreover, a 3:1 ratio in the F2 is expected of a cross between heterozygous F1 individuals, which means that 75% of individuals with short wings have the dominant allele that masks the expression of the long-wing trait (i.e. the recessive allele).


Related Questions

I control all metablic activities of the cell​

Answers

Answer:

What do you mean by I control all metabolic activities of the cell

PLEASE HELP WILL GIVE BRAINLIST!!!! Write a hypothesis to describe the relationship between earthquakes and tsunamis.

Answers

Answer:

Hypothesis: Earthquakes and tsunamis are caused by tectonic plates in the Earth's crust. When the crust moves, they occur, depending on the location of the crust.

Answer:

Most times a earthquake is what causes a tsunami, such as a deep ocean earthquake causing a tsunami to form. Most tsunamis are formed that way because deep ocean earthquakes create so much force.

Explanation:

The parenting style that can be described as lenient or inconsistent is called __________.

A. authoritarian
B. authoritative
C. permissive
D. backbone

Answers

Answer:

You're answer is C - Permissive!

Explanation:

- Eijiro <3

Answer:

C. Permissive

Explanation:

Took Edge test, got 100% :D

Define :-Aquifer
Answer this correctly I'll mark you brainliest​

Answers

Answer:

An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.

A body of permeable rock which can contain or transmit groundwater.

write a 5-7 sentence paragraph explaining what happens to co2 levels in the world over the course of the year. add as much context and details as you can

Answers

Answer:

The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Respiration happens all the time, but dominates during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.

Explanation:

20 points real answers would be amazing thank you!

Which of these is a property of tsunami waves? (1 point)
high frequency
very high speed
short wavelengths
very large amplitude

Answers

Answer: The answer would be high frequency

Explanation:

please help >:((((

Your stomach is growling and your mouth is dry. You just remembered you skipped lunch today. After school you go to the fridge, eat an apple and drink some milk. A. What is the imbalance? B. How did the systems work together to correct the imbalance? C. What is the importance of the circulatory system in the case studies?

Answers

Answer:

C. What is the importance of the circulatory system in the case studies?

Explanation:

help me please, i need complete sentences

Answers

Answer:

Look below

Explanation:

(A) A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion

(B) After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil, while plants become coal. Today, humans extract these resources through coal mining and the drilling of oil and gas wells on land and offshore.

(C) These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.

(D)Global warming pollution

Multigene families include two or more nearly identical genes with related functions. A classical example is the set of genes for globin molecules, including genes on human chromosomes 11 and 16. Some of these genes produce hemoglobin only in the fetus or embryo. Others are very similar to functional genes, but have accumulated mutations and are no longer functional. A scheme of alpha globin gene family and beta globin gene family. The alpha globin gene cluster is located on chromosome 16 and includes the loci zeta, pseudozeta, pseudoalpha-2, pseudoalpha-1, alpha-2, alpha-1, pseudotheta. The zeta gene produces hemoglobin in the embryo; alpha-2 and alpha-1 produce hemoglobin in the fetus and adult. The beta-globin locus is located on chromosome 11. The order of the genes in the beta-globin cluster is epsilon, gamma-G, gamma-A, pseudobeta, delta, beta. Epsilon produces hemoglobin in the embryo, and gamma-G and gamma-A produce hemoglobin in the fetus. Delta and beta produce hemoglobin in the adult. What is the most likely mechanism for a gene sequence moving from one chromosome to another

Answers

Answer:

Transposition to different chromosomes by the ancestral gene

Explanation:

Transposable Elements (TEs), also known as jumping genes, are genetic mobile elements which are able to move from one location to another on the genome. There are two major mechanisms of TE transposition: 1-cut-and-paste mechanism, where one particular TE is inserted into a new position on the genome without replication, and 2-copy-and-paste mechanism, where a new copy is generated and the original TE remains at the original genomic site. In this case, it is likely that new TE copies containing the ancestral (duplicated) gene have proliferated through the copy-and-paste mechanism.

PLEASE HELP!!!!!!

Most nerves of one of the sense organs go to the spinal cord before they go to the brain. Which organ is
this? (Think of your own body.)

Answers

Answer:

Umm every sense of organs travels in the spinal cord.

Most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain..

What is the significance of the reflex action?

Reflex actions are important because they allow the body to respond quickly to stimuli without waiting for the brain, and they can be especially important in situations where a quick response is necessary to avoid danger, such as when the hand touches hot substances and the hand suddenly goes back, which is due to the motor neuron action of the spinal cord.

Hence, most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain.

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Indicate whether each of the following occurs in the ER (E), Cytoplasm (C), Golgi apparatus (G), lysosome (L) or mitochondria (M). Your answer would be a four-letter string composed of letters E, C, G, L and Monly (e.g. ECEM, please do not use spaces). You may choose the same letter twice or not choose it at all. This is an all or none questions, no partial credit will be given.
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein
(2) Synthesis of phosphatidylcholine
(3) Degradation of misfolded ER protein
(4) O-linked glycosylation

Answers

Answer:

EELG

(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein occurs in the Lumen of the Endopslamic Reticulum

(2) Synthesis of phosphatidylcholine occurs in the Endoplasmic Reticulum

(3) Degradation of misfolded ER protein ossurs in the Lysosome

(4) O-linked glycosylation occurs in the Golgiapparatus

Explanation:

1. The covalent attachment of a carbohydrate to a macromolecule such as proteins or lipids is known as glycosylation.

N-linked glycosylation is a very common form of glycosylation and it occurs in eukaryotes in the lumen of the endoplasmic reticulum.

The addition of the first GlcNAc oligosaccharides to the asparagine residue of a proteinmos an example of N-linked glycosylation.

2. Phosphatidylcholine is synthesized through the CDP-choline pathway which occurs at the cytoplasmic face of the endoplasmic reticulum. Choline entering the cell is immediately phosphorylated by choline kinase, converting choline to phosphocholine.

Phosphocholine is then converted to CDP-choline by the second enzyme in the pathway, CTP:phosphocholine cytidylyltransferase (CT).

The phosphocholine moiety is then added to diacylglycerol in a reaction catalyzed by CDP-choline:1,2-diacylgylcerol cholinephosphotransferase to complete the synthesis of phosphocholine.

3. Lysosomes are the cell organelles which are responsible for the breakdown of proteins as well as other components of the cell. Misfolded proteins are identified and transported to lysosomes through chaperone-mediated autophagy, macroautophagy and endocytosis, where they are then degraded.

4. O-linked glycosylation is a form of glycosylation that occurs in eukaryotes in the Golgi apparatus.

Whoever gets it right I will mark brainest
Please no links the sometimes don't work.
The climate of southeast Brazil is affected by a ____________ current
A. Warm
B. Cold.
C. Neutral

Answers

Answer:

C

Explanation:

The climate of Southeast Brazil is quite diverse in temperature. The climate in Brazil varies considerably from mostly tropical north to temperate zones south of the Tropic of Capricorn (23°26' S latitude).

When a stream's velocity decreases from 300 to 200 centimeters per second, which size sediment will be deposited?

Answers

Middle size sediment will be deposited on the ground when the speed of flowing water decreases.

Deposition of sediments

When a stream's velocity decreases from 300 to 200 centimeters per second, the middle size sediment will be deposited because of the lowering velocity of the stream. Big size sediments hardly move by the water of the stream.

While on the other hand, middle and small sized sediments easily moved by the flowing water due to their light weight so we can conclude that middle size sediment will be deposited on the ground when the speed of flowing water decreases.

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19. Salinization may be caused by
a. crop rotation.
b. long-term irrigation.
c. high rainfall.
d. All of the above

Answers

Answer:

The correct answer is A. crop rotation.

Explanation:

Hope this helps :)

what type of disorder does a monosomy have?

Answers

Nondisjunction. Monosomy would mean it's missing a chromosome.

describe an experiments to show that ochaled air
Cartain carbon dioxide​

Answers

Answer:

Let's find out if exhaled air contains carbon dioxide.

Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.

Explanation:

Choose the correct connective tissue.

1)Bone to bone
2)Muscle to muscle

-ligament
-tendon

Answers

Explanation:

A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.

A tendon is a fibrous connective tissue which attaches muscle to bone.

A ligament is a fibrous connective tissue which attaches bone to bone.

What is tendons and its function?

A tendon is a cord of strong, flexible tissue, similar to a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs. They also help prevent muscle injury by absorbing some of the impact your muscles take when you run, jump or do other movements.

What is ligament and its function?

Ligaments often connect two bones together, particularly in the joints: Like strong, firmly attached straps or ropes, they stabilize the joint or hold the ends of two bones together. This ensures that the bones in the joint don't twist too much or move too far apart and become dislocated.

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Can someone help lol

Answers

Answer:

False

True

False (it’s suppose to Be “on earth” not “at) or maybe it’s True

False

False (trophere)

False (nitrogen, oxygen is only 21%)

True

Explanation:

What is the number of chromosomes for diploid frog cells?
If a frog had 26 chromosomes would the cell be diploid or haploid?​

Answers

Answer:

What is the number of chromosomes for diploid frog cells?

26

If a frog had 26 chromosomes would the cell be diploid or haploid?

diploid

-TheUnknownScientist

Answer:

26

diploid .............

Which of the following is not a major component of blood in humans?  AEpithelial cells  BRed blood cells  CWhite blood cells  DPlasma  EPlatelets

Answers

Answer:

A - Epithelial cells

Explanation:

Epithelial cells are cells that come from surfaces of your body, such as your skin, blood vessels, urinary tract, or organs. They serve as a barrier between the inside and outside of your body, and protect it from viruses. A small number of epithelial cells in your urine is normal.

How many atoms does nitrogen dioxide have??

Answers

Answer: in one molecule of NO2 there is one nitrogen atom and two oxygen atoms.

Explanation: lol

María and Sean both have brown eyes (a dominant trait), yet their first child has blue eyes (a recessive trait). Using "B" for brown and "r" for blue, fill out the punnett square below to show how that could happen. ​

Answers

Answer:

i put a ss of a punnett square i made:) i hope this helped !!

Explanation:

The role of which bodily system is to protect the body from diseases?

A. excretory
B. nervous
C. lymphatic
D. endocrine

Answers

Answer:

lymphatic

Explanation:

It contains your immune system that helps you fight off diseases


SOMEONE PLEASE HELP

Examine the model of the carbon cycle select all of the processes that we turn carbon compounds to the atmosphere.

Answers

B, C, and E are the processes that release carbon compounds to the atmosphere

The processes that considerably turn carbon compounds into the atmosphere are the decaying of organisms, the respiration of animals, and emissions from automobiles and factories. Thus, the correct options for this question are B, C, and E.

What do you mean by the Carbon cycle?

The carbon cycle may be defined as a type of biogeochemical cycle through which carbo and its derivative products are exchanged among the various spheres of the earth's surface. Carbon is considered one of the main components of biological systems.

In the carbon cycle, rhe process of photosynthesis utilizes the carbon from the atmosphere in order to produce chemical energy in the form of glucose. While the excretion of animal waste products is responsible for nitrogenous compounds like urea or ammonia.

Except for these two, all other options are directly liberating carbon into the atmosphere which can easily be demonstrated in the carbon cycle.

Therefore, the correct options for this question are B, C, and E.

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When the population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would do?
A. Decrease

B. Increase, because there is more food available to them.

Answers

Answer:

B

Explanation:

When there’s more food, the populations that depend on that food with flourish. It is also worth noting for future questions that a decrease in predation will usually lead to an increase in a population of prey. Hope this helps :)

The population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would :

B. Increase, because there is more food available to them.

The population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would increase, because there is more food available to them.When there is more food, the population that depends on it will prosper. For future questions, it is also worth noting  that a decrease in predation usually leads to an increase in prey population.

Thus,the correct answer is B.

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While playing baseball with his friends, Reyes was almost hit in the face with a fast ball. Neurotransmitters in his _____ were released, triggering the firing of neurons throughout his brain and the release of chemicals throughout his body. His heart beat quickened, his pupils dilated, and his respiration increased.

Answers

hypothalamus

I hope this helps

hypothalamus

I hope this helps

Which of the following is most clearly a benefit of genetic engineering?

Answers

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering.

Answer:

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering-

Explanation:

production of human insulin through genetic modification of bacterial genes

D

How is form used in classification?

Answers

Form classification is the classification of organisms based on their morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known.

11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably have?

Answers

Answer:

The correct answer is - brown heterozygous Bb and blue eye bb.

Explanation:

In the provided question it is given that there are 20 babies born, 10 babies had blue eyes and 10 had brown eyes. As it is known that brown eyes are dominant over blue eyes, therefore, on the basis of this we can say that all blue-eyed babies have a bb genotype and as brown eyes are dominant traits babies must have at least one copy of the B allele which represents brown eye trait.

case1:

Parent 1 : bb

parent 2: BB

   B      B

b  Bb   Bb

b   Bb   Bb

there are 100% brown eye offspring so this is not the case

case 2:

Parent 1 : bb

parent 2: Bb

   B      b

b  Bb   bb

b   Bb   bb

here, 50% brown eyes and 50% blue eyes offspring produced thus, the parent trait will be brown heterozygous and blue eye.

describe the structure of an atom of argon-38 and argon-40

Answers

Answer:

Argon 38 has 18 proton and 20 neutron

Argon 40 has 18 proton and 22 neutron

Explanation:

isotope is same no of proton diff no of neutron

Both argon-38 and argon-40 have 18 protons but they have different atomic masses. The atomic mass of argon-38 is 38u while the atomic mass of argon-40 is 40u. Thus, they are isotopes.

What are isotopes? Some atoms contain the same number of protons (i.e. same atomic number) but they have a different number of neutrons (i.e. different mass numbers). These types of atoms are called isotopes.Argon element has three isotopes namely, argon-36, argon-38 and argon-40. All the three isotopes of argon have the same number of protons i.e. 18. But, all have different numbers of neutrons and thus, different mass numbers. Argon-36 has 18 neutrons, argon-38 has 20 neutrons and argon-40 has 22 neutrons. Thus, the mass numbers of argon-36, argon-38 and argon-40 are 36u, 38u and 40u respectively.

Thus, the structure of an atom of argon-38 and argon-40 is slightly different as they are isotopes. Argon 40 has more atomic mass than argon-38. But, both contain the same number of protons. They have similar chemical properties but different physical properties.

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The queen was very beautiful. Which choice below adds concrete language to make the sentence more precise? A. The queen was a very beautiful woman. B. He could see that the queen was very lovely. C. The queen was tall, with long, raven hair and laughing blue eyes. D. Everyone had always said that the queen was the most beautiful woman in the kingdom. what is 15% of 22 help Pretty please HELP MEEEE A circular flower bed is 19 m in diameter and has a circular sidewalk around it that is 3 m wide. Find the area of the sidewalk in square meters. Use 3.14 for pi. Chromosomes often exchange segments of DNA during meiosis. How might this increase the survival of a species? 6 more than a number what is the correct way to read 0.017 Why does everyone keep commenting links on my posts? Please stop, if you dont know the answer then dont comment :( how did the technological developments of the cold war increased tensions between the united states amd Soviet Union 11 Resuelve los problemas desarrollados .- Una persona deposit una cierta cantidad dedinero en un banco que paga el 6.2% de inters simple anual. Si al cabo de 10 aos losintereses ganados alcanzan los RD$ 19 840,de cunto fue el depsito realizado? A qu porcentaje de inters fueron deposi-tados RD$ 48 000.00 para que transcurridos15 meses los intereses devengados sean deRD$ 3 450.00?En qu tiempo un capital de RD$ 72 475.00depositado a una tasa de inters simple anualde un 4% produce intereses de RD$ 36 237.50? PLEASE SAY A,B,C OR D OF THE RIGHT ANSWER ONLY PLEASE! no links or flies, x . Javier read 712 of a book on Saturday, and 412 of the same book on Sunday. Which equation shows the fraction of the book that Javier read over the weekend?A. 7/12 + 4/12 = 11/12B. 7/12 4/12 = 3/0C. 7/12 + 4/12 = 11/24D. 7/12 4/12 = 3/12 CH3OH can be synthesized by the reaction:CO(g) + 2 H20) CH3OH)What volume of CH3OH gas (in L) can be synthesized if 18.6 L of Hy gas completely reacts at STP conditions? Last week, the price of bananas at a grocery store was $0.80 per pound. This week, bananas at the same grocery store are on sale at 25% discount. What is the total price of 5.5 pounds of bananas this week at the grocery store? Solve each proportion using the Cross Products Property.Will give brainliest state three reasons for preventing food spoilage 4. Describe the architectural style of the Pantheon. The price of XYZ stock fluctuates widely. In January it closed at $3.50 but In February it Closed at $2.25. However at the end of March it shot back up to $5.00. What was the average monthy change in the price of XYZ stock from january through march? please help me to solve this question please Plssss help and thank you The perimeter of the shape below is 44 feet. What is the area in square feet? Find the volume of the cylinder.Either enter an exact answer in terms of or use 3.14 for pi