Question

Which of the following are used to define the karyotype of a species?
1. The number of chromosomes
2. The chromosome length
3. The positions of the centromeres

• A. 1, 2 and 3 are correct
• B. Only 1 and 2 are correct
• C. Only 2 and 3 are correct
• D. Only 1 and 3 are correct

Answer 1

The correct option is A 1, 2 and 3 are correct

Karyotype is the chromosome complement of a cell or organism providing a description of various aspects of all the chromosomes like number relative size, the position of the centromere, the length of arms and centromeric ratio, secondary constrictions, and satellites.

So, the correct answer is option A.