From the cross AB/ab ? ab/ab, what is the recombination frequency if the progeny numbers are 72 AB/ab, 68 ab/ab, 17 Ab/ab, and 21 aB/ab?

a. 0.213
a. 0.271
c. 0.500
d. 0.787
e. cannot be determined

Question

From the cross AB/ab ? ab/ab, what is the recombination frequency if the progeny numbers are 72 AB/ab, 68 ab/ab, 17 Ab/ab, and 21 aB/ab?
 
a. 0.213
       a. 0.271
       c. 0.500
       d. 0.787
       e. cannot be determined

anonymous · Answer

This is from my genetics class. Not sure if this would count as math, or biology.

anonymous · Answer

do you 've any idea ???

anonymous · Answer

I'll help you .. you know what is recombination frequency??

anonymous · Answer

And it is a Biology Question ^^

anonymous · Answer

Sorry! I was working on another piece of homework and got side tracked lol.

anonymous · Answer

I honestly have no idea how to figure out ratio.

anonymous · Answer

Sorry for late reply.  Recombination Frequency : It is the Proportion of recombinant types between two gene pairs as compared to the sum of all combinations.
Can you tell me the recombinant types in your question?