× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
w
3
w
3
e
3
3
r
3
g
2
2
b
2
M
2
V
2
f
2
c
2
New Topic  
rachelle17 rachelle17
wrote...
Posts: 26
Rep: 1 0
7 years ago
1.The colour of eyes in fruit flies is determined by a gene on the X chromosome with two alleles.
    XR = red eyes;         Xr = white eyes
Cross a red eye male to a white eye female. Write the genotype cross of the parents.

2.The colour of eyes in fruit flies is determined by a gene on the X chromosome with two alleles.
    XR = red eyes;         Xr = white eyes
Cross a red eye male to a white eye female. Write the Punnet square of the cross.

3.The colour of eyes in fruit flies is determined by a gene on the X chromosome with two alleles.
    XR = red eyes;         Xr = white eyes
Cross a red eye male to a white eye female. Write the genotypes, phenotypes, and sex of the offspring
Read 235 times
2 Replies

Related Topics

Replies
wrote...
Valued Member
7 years ago
Female: Xr Xr
Male : XR XXRr XXRr

Y XYr XYr

This means that the offspring could either be Females with red eyes (50% XXRr) or males with whites eyes (50% XYr)
wrote...
Educator
7 years ago
In addition to the answer above, https://biology-forums.com/index.php?topic=151522.0 contains a sound explanation.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  466 People Browsing
Show Emoticons
:):(;):P:D:|:O:?:nerd:8o:glasses::-):-(:-*O:-D>:-D:o):idea::important::help::error::warning::favorite:
Related Images
  
 9500
  
 344
  
 488
Your Opinion
Who will win the 2024 president election?
Votes: 119
Closes: November 4