A red-eyed male fly was crossed with a male whale with white eyes. The following offspring...
A red-eyed male fly was crossed with a male whale with white
eyes.
The following offspring were observed:
90 females with red eyes
43 males with red eyes
47 males with white eyes
Which statement is most accurate?
a) We have polygen legacy
b) The gene shows the 3: 1 ratio in monohybrid crossing
c) The red-eye gene must be attached to the
X-chromosome
d) The white- eye gene must be attached to the Y-chromosome
e) Females can never have white eyes
Why is answer option C correct here?
Homework Answers
The X chromosome is sex chromosome which is present in both male and female. In this there are 90 females produced who have red eyes and 43 males with red eyes. In the former there is XX chromosome and the later has XY chromosome. In either of the cases, the X chromosome needs to be attached to the red eyed for the segregation to take place.
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figure 4.13
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figure 4.13
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