What is a test cross and why is it used What technology is e

What is a test cross and why is it used? What technology is essentially replacing the test cross? Do you think its necessary to know the number of contributors to a mixed DNA sample?

Solution

1)-Test cross- it is a cross between a unknown genotype organism with a known ressesive genotype.

2)-It is done to know the genotype of unknown perent.

3)- yes it necessary