Question

value: 10
the genetic make up of the sex chromosomes of a son is_
a. xx
b. xy
c. yy
d. xo
check answer
show/hide comprehension question...
value: 10
the total number of autosomes in an adult cell is ____.
a. 23
b. 44
c. 46
d. 92
check answer

Explanation:

In humans, the sex - chromosome makeup of a son (male) is XY. Females have XX sex - chromosomes. YY and XO are not typical sex - chromosome combinations for a normal male. For the second question, humans have 23 pairs of chromosomes in each somatic cell. Of these, 22 pairs are autosomes and 1 pair is sex - chromosomes. So the total number of autosomes in an adult cell is 22 pairs, which is 44.

Answer:

1. B. XY
2. B. 44