Question

What is structure X?

A- a cell, a level of organization that is lower than a tissue

B- an atom, the second level of organization in a living organism

C- a tissue, the highest level of organization in a living organism

B- an organ, a level of organization that is higher than an organelle


(Explain)

Answer 1

X Chromosome

Step-by-step explanation:

The X chromosome is one of the two sex chromosomes that are involved in sex determination. Humans and most other mammals have two sex chromosomes (X and Y) that in combination determine the sex of an individual. Females have two X chromosomes in their cells, while males have one X and one Y.

The X-shaped structures during diplotene stage are called chiasmata. This process is known as crossing over. This results in exchange of genetic material between two homologous chromosomes

Structure:

The X chromosome spans about 155 million DNA building blocks (base pairs) and represents approximately 5 percent of the total DNA in cells. Each person normally has one pair of sex chromosomes in each cell.