Before cell division of somatic cells, each chromosome must be replicated.  After replication, the resulting two parts of each chromosome are held together by cohesin at the centromere.  These two parts are referred to as

A. genes.
B. homologous chromosomes.
C. daughter chromosomes.
D. sister chromatids.
E. kinetochores.


Answer: D

Biology & Microbiology

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What ecosystem has the highest rate of primary productivity?

a. savanna b. agricultural land c. algal beds and reefs d. boreal forest e. tropical rain forest

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Four of the five choices listed below are derived

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Biology & Microbiology