Question

You perform a test cross with a double heterozygous individual to a double homozygous recessive individual. you suspect the two genes are linked on the same chromosome with a recombinant frequency of 0.2. if you have 50 offspring how many total recombinant offspring do you expect to see?

- 10
- 12
- 20
- 30

Answer 1

In a test cross with a double heterozygous and double homozygous recessive individual, with a recombinant frequency of 0.2, you expect to see 10 recombinant offspring out of 50.

Step-by-step explanation:

When you perform a test cross between a double heterozygous individual and a double homozygous recessive individual, and you have a recombinant frequency of 0.2 (20%), you can determine the number of recombinant offspring by multiplying the total number of offspring by the recombinant frequency. With 50 offspring in total, you expect to see:

50 offspring × 0.2 (recombinant frequency) = 10 recombinant offspring.

Therefore, you would expect to have 10 total recombinant offspring from this cross.