Ask Question
BiologyBiology
27 January, 03:24

Eyeless is a recessive gene on chromosome 4 of Drosophila melanogaster. Flies homozygous for ey have tiny eyes or no eyes at all. A male fly trisomic for chromosome 4 with genotype + / +/ey is crossed with a normal, diploid eyeless female.

What proportion of their progeny will be eyeless?

A. 1/6

B. 1/3

C. 1/2

D. 2/3

E. 1/8

F. 1/4

G. 3/8

H. 5/8

I. 3/4

+1
Answers (1)
  1. 27 January, 04:35
    0
    A. 1/6

    Explanation:

    A male fly trisomic for chromosome 4 with genotype + / +/ey is crossed with a normal, diploid eyeless female. i. e

    δ + / +/ey ey/ey ⊕

    +, +, + / +, ey, + / ey, + / ey * ey/ey

    ey/+, + / ey, + / +/ey, ey/ey, + / ey/ey, + / ey/ey

    ey/+, + / ey, + / +/ey, ey/ey, + / ey/ey, + / ey/ey

    =2/12

    =1/6
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Eyeless is a recessive gene on chromosome 4 of Drosophila melanogaster. Flies homozygous for ey have tiny eyes or no eyes at all. A male ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
In many animal cells, the uptake of glucose into the cell occurs by a cotransport mechanism, in which glucose is cotransported with na + ions.
Answers (1)
Which type of plant reproduces using seed cones?
Answers (1)
What role do plankton play in the oxygen cycle?
Answers (1)
Is the spinal cord an organ
Answers (1)
Where is the stomach located in the cat
Answers (1)
New Questions in Biology
During the process of fertilization, a haploid egg cell fuses with a haploid sperm cell. the nuclei of the cells fuse, and the homologous chromosomes pair up. what is the name of the diploid cell that results from this fusion?
Answers (1)
How do u describe the structure of a cell
Answers (1)
Why do people in movies die from a single stab wound?
Answers (1)
Which class of vertebrates is easily distinguishable by the presence of sweat glands, including specialized glands that produce milk? A) Amphibia B) Aves C) Mammalia D) Reptilia
Answers (2)
Difference between epidermis and cork
Answers (1)
Home » Biology » Eyeless is a recessive gene on chromosome 4 of Drosophila melanogaster. Flies homozygous for ey have tiny eyes or no eyes at all. A male fly trisomic for chromosome 4 with genotype + / +/ey is crossed with a normal, diploid eyeless female.
Sign Up Forgot Password?