1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kifflom [539]
3 years ago
7

A test cross was made between true-breeding EEWW flies and eeww flies. The resulting F1 generation was then crossed with eeww fl

ies. 100 offspring in the F2 generation were examined, and it was discovered that the E and W genes were not linked. Which is the correct genotype of the F2 offspring if the genes were linked and if the genes were not linked?
Biology
1 answer:
Anton [14]3 years ago
6 0

Explanation:

<h3><u>If the genes were linked:</u></h3>

<u>Parental cross: EW/EW X ew/ew</u>

F1 genotype: EW/ew

F1 Gametes:

- Parentals (more abundant): EW and ew

- Recombinant (less abundant): Ew and eW

<u>Test cross: EW/ew X ew/ew</u>

<u>F2 genotypes:</u>

  • Parentals: EW/ew; ew/ew;
  • Recombinant: Ew/ew; eW/ew

<h3><u>If the genes are not linked:</u></h3>

<u>Parental cross: EEWW X eeww</u>

F1 genotype: EeWw

F1 gametes: EW, Ew, eW, ew. Genes assort independently, so all of the possible gametes of the F1 individual will have the same probability.

<u>Test cross: EeWw X eeww</u>

<u>F2 genotypes:</u>

  • 1/4 EeWw, 1/4 Eeww, 1/4 eeWw, 1/4 eeww

You might be interested in
Does commensalism involve abiotic factors or biotic factors ? ​
monitta

Answer:

Commensalism only occur among biotic factors

Explanation:

Abiotic factors are non-living factors that interacts with the biotic factor within an ecosystem. Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.

From the above definition of commensalism, it is clear to note that it only involves two organisms rather than non-living organisms, hence; commensalism involves only biotic factors

4 0
3 years ago
Hey guys...........please help me with this one❤❤❤❤ Every organism needs food. Does a cell also need it? Explain very briefly.
Alexxx [7]

Cells do need food. In a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (ATP), and then release waste products.


hope this helps.. :D

3 0
3 years ago
Please hurry
Ede4ka [16]

Answer: strong roots

Explanation:

Plants situated in fast-flowing area of a stream (aquatic environment) require certain body features to help them adapt to the fast blowing tides or waves of water, these include:

- a long slender stem

- strong roots for attachment and to withstand being uprooted by fast blowing tides

- waxy leaves and stem with intracellular air spaces to maintain buoyancy and float above the water

7 0
3 years ago
Read 2 more answers
One role of enzymes in the human body.
sergejj [24]

Answer:

speed up the rate of virtually all of the chemical reactions that take place within cells.

7 0
3 years ago
Read 2 more answers
Abcdefghijklmnopqrstuvwxyz
konstantin123 [22]

D is the correct answer i think.


4 0
3 years ago
Read 2 more answers
Other questions:
  • How does phagocytosis work?​
    7·2 answers
  • A piece of bread held in the mouth begins to taste sweet as large carbohydrate molecules are broken down into smaller sugars. th
    5·1 answer
  • Are characterized by being mostly aquatic and microscopic, having zoospores and gametes with flagella.
    6·2 answers
  • a plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punne
    11·2 answers
  • True or False: The properties of individual elements stay the same after combining.
    14·2 answers
  • For what cell process is the mitochondria (picture below) responsible?
    10·1 answer
  • What happens to all the weight of the food we eat
    8·1 answer
  • Give one use of sugar in the body
    7·2 answers
  • Which two formulas contain 4 atoms of oxygen
    13·2 answers
  • D 5. What is ecosystem diversity? the number of different genes in an ecosystem O the number of different ecosystems in an area
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!