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Which region of a chromosome is responsible for tightly associating the two sister chromatids?
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6. Chromosomal Variation
Chromosomal Mutations: Aberrant Euploidy
Multiple Choice
A duplicated chromosome consists of two:
A
sister chromatids
B
telomeres
C
centromeres
D
homologous chromosomes
검증된 단계별 안내1
Understand the structure of a duplicated chromosome: after DNA replication, a chromosome consists of two identical copies called chromatids.
Recall that these two identical copies are connected at a specific region called the centromere.
Recognize that the two identical chromatids connected by a centromere are called sister chromatids.
Differentiate sister chromatids from homologous chromosomes, which are pairs of chromosomes (one from each parent) that are similar but not identical.
Conclude that the correct term for the two parts of a duplicated chromosome is sister chromatids.
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