NEET 2003 Biology question

In recent years, DNA sequences (nucleotide sequence) of mt-DNA and Y chromosomes were considered for the study of human evolution, because : -

(1)They are small, and therefore, easy to study
(2)They are uniparental in origin and do not take part in recombinationCorrect
(3)Their structure is known in greater detail
(4)They can be studied from the samples of fossil remains

Answer: (2)

Solution

Mitochondrial DNA is inherited only from the mother and the Y chromosome only from the father (uniparental inheritance), and neither undergoes recombination (the non-recombining part of Y). Changes in their sequence

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-089259