Multiple Choice
In the context of chromosome structure, what do the dark and light bands represent?
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3. Energy & Cell Processes
Organization of DNA in the Cell
Multiple Choice
"Sister chromatids" are:
A
Genetically identical & attached by a centromere.
B
Genetically different & attached by a centromere.
C
Genetically different & attached at the genome.
D
Genetically identical & attached at the chromosome.
Verified step by step guidance1
Understand the definition of sister chromatids: Sister chromatids are two identical copies of a single replicated chromosome that are connected to each other.
Recall that sister chromatids are formed during the S phase of the cell cycle when DNA replication occurs, resulting in two identical DNA molecules.
Recognize that these identical chromatids remain attached at a specific region called the centromere until they are separated during cell division.
Differentiate sister chromatids from homologous chromosomes, which are similar but genetically different chromosomes inherited from each parent.
Conclude that sister chromatids are genetically identical and attached by a centromere.
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