What is the relationship between chromosome numbers in body cells and sex cells?

Biology

1 answer:

erik [133]3 years ago

7 0

Answer:

In sexually reproducing organisms, the number of chromosomes in the body (somatic) cells typically is diploid (2n; a pair of each chromosome), twice the haploid (1n) number found in the sex cells, or gametes. The haploid number is produced during meiosis.

You might be interested in

The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of t

bekas [8.4K]

Answer:

plicae circulares and intestinal villi

Explanation:

The inner wall of the intestine is full of wrinkles, called villi. An enlargement of them under the microscope reveals that they are formed by cells whose surface has innumerable small "wrinkled" structures. The small intestine is the largest viscera of the body (about six meters). Intestinal villi and microvilli increase the area of contact with the intestine as well as the speed of absorption of food. Blood capillaries and lymph are in these villi to absorb nutrients.

The intestinal villi, have the function of increasing the absorption of nutrients after digestion. They are the folds of the intestines. The surface of the villi has an area of 12 cm² and the microvilli 240 cm².

Villi and microvilli increase the area of intestinal absorption by approximately 30 times and 600 times, respectively, providing exceptionally efficient absorption of nutrients in the lumen.

The entire small intestine has circular folds of mucosa, also called Kerckring valves and circular plicae. Most extend transversely around the small intestine cylinder for about half or two-thirds of its circumference, but some form complete circles, and some have a spiraling direction; The latter usually extend a little more than once around the bowel, but occasionally two or three times. Circular folds slow the passage of partially digested food along the intestines and provide an increased surface for absorption.

6 0

4 years ago

Why do biologists study bacteria ?

andre [41]

Answer:

Today: Monday, 12 October 2020

Hour: 06.41 WIB (in Indonesia)

__________________________

because bacteria are included in one of the branches of biology, that is microbiology. Biologists learn about the benefits of bacteria in human life as well as the bad effects caused by certain bacteria

6 0

3 years ago

Nose bleeding occur as we move towards high altitude, why ?

Anastasy [175]

the higher the altitude, the lower the oxygen available.

6 0

4 years ago

Read 2 more answers

You walk outside and find your dad installing a wall of large rocks halfway down your sloping backyard. Before your dad began

Sliva [168]

Answer:

There is no picture, but d seems the most likely.