Karyotype of Down’s syndrome has how many chromosomes?

Question

Karyotype of Down’s syndrome has how many chromosomes? (A) 43 (B) 46 (C) 47 (D) 45

Tardigrade Admin · Accepted Answer

Karyotype of people suffering from Down’s syndrome have 47 chromosomes ( 45 + XY in males, 45 + XX in females) instead of 46. It is caused due to the presence of an extra chromosome, i.e. chromosome number 21. Thus, it is also known as 21 trisomy.

Q. Karyotype of Down’s syndrome has how many chromosomes?

43

46

47

45

Karyotype of people suffering from Down’s syndrome have $47$ chromosomes ( $45 + X Y$ in males, $45 + XX$ in females) instead of $46$ . It is caused due to the presence of an extra chromosome, i.e. chromosome number $21$ . Thus, it is also known as $21$ trisomy.

Q. Karyotype of Down’s syndrome has how many chromosomes?

43

46

47

45

Karyotype of people suffering from Down’s syndrome have 47 chromosomes ( 45+XY in males, 45+XX in females) instead of 46. It is caused due to the presence of an extra chromosome, i.e. chromosome number 21. Thus, it is also known as 21 trisomy.

Karyotype of people suffering from Down’s syndrome have $47$ chromosomes ( $45 + X Y$ in males, $45 + XX$ in females) instead of $46$ . It is caused due to the presence of an extra chromosome, i.e. chromosome number $21$ . Thus, it is also known as $21$ trisomy.