Question

Study the karyotype carefully. What can you identify to be true about this child

This is a female, with three copies of chromosome 21.

This is a female, with no genetic abnormalities.

This is a male, with no genetic abnormalities.

This is a male, with three copies of chromosome 21.

Answer 1

The last one, I believe.

This is a male, with three copies of chromosomes 21

Hope it helps :D

Answer 2

Answer: Option D

Explanation:

The karyotype here shows that the 23 pair of chromosome is the sex chromosome which shows one X and one Y chromosome which means that it is a male.

The chromosome number 21 has 3 chromosomes which represents trisomy. Due to this trisomy there can be various types of abnormalities seen in the body.

Rest of the chromosome have no abnormality in it. They are in pair and there will be no abnormality in the protein produced by these gene.

Hence, the correct answer is option D