× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
T
3
s
3
o
3
G
3
k
3
C
3
a
3
K
3
f
3
j
3
b
3
c
3
Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
New Topic  
nvaldivi2 nvaldivi2
wrote...
Posts: 18
Rep: 0 0
11 years ago
Suppose that in yellow perch, stripe color is controlled by one gene with two alleles that show incomplete dominance.  The allele E1 produces yellow pigment and allele E2 produces blue pigment.  If we cross a yellow-striped individual with a blue-striped individual, how many of their offspring will be yellow-striped?  Explain.
Read 480 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
From your given info we know that we are crossing an E1E1(yellow) individual with an E2E2 (blue) individual.  In this case, both parents can only give one allele, resulting in an E1E2 first generation offspring.  If this gene is one that exhibits incomplete dominance, none of them will be yellow striped, as they should all be green (or blue AND yellow).
wrote...
#2
11 years ago
If this is incomplete dominance and E1=yellow and E2=blue.  The cross is E1E1 x E2E2, and all offspring are E1E2, so there are no yellow offspring.  There are no blue offspring, either.  They are all E1E2, which is a third phenotype (maybe green?).
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1296 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 138
  
 4598
  
 1417
Your Opinion
Which is the best fuel for late night cramming?
Votes: 146
Previous poll results: Which 'study break' activity do you find most distracting?