There are _______ chromosomes in a human body.
A. 20
B. 30
C. 46
D.38
I chose C
There are 46 chromosomes in each cell of a human body (excluding ovum and sperm).
You made the correct choice. The correct answer is C. There are 46 chromosomes in a human body.
The correct answer is C. There are 46 chromosomes in a human body.
To determine the number of chromosomes in a human body, you can use your knowledge of human genetics. Humans typically have 23 pairs of chromosomes, for a total of 46 chromosomes. Each chromosome pair consists of one chromosome from the person's mother and one from their father, making a total of 46.
Option A, 20 chromosomes, is incorrect. This number is too low and does not match the actual number of chromosomes in a human body.
Option B, 30 chromosomes, is also incorrect. This number is higher than the actual number of chromosomes in a human body.
Option D, 38 chromosomes, is incorrect as well. This number does not match the actual number of chromosomes in a human body.
So, the correct answer is C, 46 chromosomes.