Question

In down syndrome:
1
(I)- Chromosomes are not able to separate, giving rise to cells with an unequal number of chromosomes.
(II) - Nondisjunction happens, when chromosome segregates in anaphase.
(III) - There is no genetic information missing in these individuals but the extra copy of genes of chromosome 20
(IV) - Chromosome problems such as Down syndrome can often be diagnosed before birth. This is done by looking at cells in the amniotic fluid or from the placenta.
Choose from below the correct alternative. a. only I is true
b. I, II and IV are true
c. III and II are true
d. I and III are true

Answer 1

Answer:

good doubt

the answer is

C)

Answer 2

Answer:

a) only I is true

Explanation:

Good morning have a great day ahead