The diagram shows four pairs of chromosomes from the karyotype of a normal human male.
1 answer:
Answer:
According to the karyotype image, the sex chromosomes of a normal human male are those of the last picture, where both are different.
Explanation:
The sex chromosomes are those that determine the sex in a species, as in the human being and other species X and Y. <u>XY chromosomes determine the male sex while the XX sex pair corresponds to the female sex</u>.
In humans, the chromosomes are grouped by pairs with the same characteristics, that is, most pairs of chromosomes are identical. The only exception is represented by the male human sex chromosomes X and Y. This difference in the sex chromosomes causes the different sex chromosomes (picture) to be called heterogametic.
You might be interested in
Answer:
100%
Explanation:
A pea plant homozygous for the trait of smooth seeds;
let that be = ss
A pea plant that is homozygous for the trait of wrinkled seeds;
let that be = ww
if ss crosses with ww; the F1 produces seeds that are all smooth
i.e ss × ww = (sw, sw, sw, sw)
From the question, we are to find the percentage of the second generation that will produce smooth seeds after self fertilization occurs.
i.e sw, sw, sw, sw × sw, sw, sw, sw
= the result will yield ssww for all F2 progeny
∴ the percentage of plants that will have smooth seeds when the F1 generation is self-fertiized is 100%
