× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
7
n
3
j
3
o
2
x
2
c
2
2
p
2
n
2
3
2
C
2
z
2
This topic contains 1 attachment.
Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
New Topic  
Fia Fia
wrote...
Posts: 1
Rep: 0 0
2 years ago
It’s a linkage question but I couldn’t find a topic with linkage:(

The test cross ab/ab x Ab/aB is performed. The following number of progeny of each genotype are obtained: 87 AaBb, 409 Aabb, 390 aaBb, 114 aabb.

What is the approximate distance (in map units) between the two genes in question?

A. 25 centiMorgans (CM)
B. 20cM
C. 15 cM
D. 10 cM
E. 5 cM
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
Read 72 times
1 Reply

Related Topics

Replies
wrote...
#1
Educator
2 years ago
Add all those values:

\[87+409+390+114=1000\]

Add AaBb and aabb:

\[87+114\]

Recombinant Frequency: \[\frac{201}{1000} = 0.201 \times 100% = 20.1%\]

Therefore, the distance between the two genes are 20.1 mu
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  952 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 174
  
 153
  
 1709
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 352
Previous poll results: Who's your favorite biologist?