The genotype<span> is the set of genes in our DNA which is responsible for a particular trait. The </span>phenotype<span> is the physical expression, or characteristics, of that trait. I'm just defining them but I hope it helps you </span>
Among the choices listed, the one that is not a characteristic of all nonvascular plants is "They produce seeds.". The main difference between vascular and nonvascular plants is the presence of Xylem and Phloem which are tubular tissues used to transport water, food, ans minerals throughout the plant. Plants that have Xylem and Phloem are considered vascular plants.
Answer:
The correct answer is - 0.72 pg.
Explanation:
A we know that, genetic material present in one primary spermatocyte divides in between four sperm cells that means that each sperm cell has 25 percent of DNA or genetic material of the primary spermatocyte.
Given:
1 sperm cell = 0.18 nuclear DNA
So,
0.18*4 = DNA content of primary spermatocyte
DNA content of primary spermatocyte = 0.72 picogram
