Test SeriesFree PYQsExamsPricing

NEET Biology question

BiologyPrinciples of Inheritance and VariationNEET

There are three genes , , . The percentage of crossing over between and is 20%, between and is 28%, and between and is 8%. What is the sequence of genes on the chromosome?

Answer: (A)

Solution

Since 1% recombination corresponds to 1 map unit, test the order that makes the two shorter distances add up to the longest one. If the order is : distance – = 20 units, – = 8 units, and these should sum to give –

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-120257