Question

question 1 of 10
what is the role of a centromere?
a. to regulate which genes are used to make proteins
b. to wrap around histones in order to package dna in chromosomes
c. to protect the middles of chromosomes
d. to connect sister chromatids before cell division

Explanation:

• Option A describes gene regulation, not centromere function.
• Option B refers to DNA packaging by histones, not centromeres.
• Option C describes the role of telomeres (protecting chromosome ends), not centromeres.
• Option D correctly identifies the centromere's core role: linking sister chromatids prior to cell division, which is critical for proper chromatid separation during mitosis/meiosis.

Answer:

D. To connect sister chromatids before cell division