Question

which of the following statements best describes chromosomes?
a. humans have more than 460 chromosomes in every cell of the body.
b. chromosomes are threadlike structures that carry genetic information.
c. humans receive the majority of their chromosomes from their mother.
d. chromosomes are arranged in 20 distinct pairs in the human body.
please select the best answer from the choices provided
a
b
c
d

Explanation:

• Option A: Humans have 46 chromosomes in most body cells (23 pairs), not more than 460. So A is incorrect.
• Option B: Chromosomes are indeed thread - like (composed of DNA and proteins) and carry genetic information (genes). This is a correct description.
• Option C: Humans receive half of their chromosomes (23) from the mother and half (23) from the father. So C is incorrect.
• Option D: Humans have 23 distinct pairs of chromosomes (22 pairs of autosomes and 1 pair of sex chromosomes), not 20. So D is incorrect.

Answer:

B. Chromosomes are threadlike structures that carry genetic information.