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Multiple Choice
An organism has 4 duplicated chromosomes. How many sister chromatids does it have?
A
4
B
16
C
12
D
8
Verified step by step guidance
1
Understand that a duplicated chromosome consists of two sister chromatids. Each chromatid is an identical copy of the chromosome, connected at a region called the centromere.
Identify the number of duplicated chromosomes given in the problem, which is 4.
Recognize that each duplicated chromosome has 2 sister chromatids.
Calculate the total number of sister chromatids by multiplying the number of duplicated chromosomes by the number of sister chromatids per chromosome: 4 duplicated chromosomes × 2 sister chromatids per chromosome.
Conclude that the organism has a total of 8 sister chromatids.