Pls help 1. identify the organelle that regulates cell function and contains the dna

A. Nucleus

B. mitochondria

C. golgi apparatus

D. cell

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On a floor there are several 1-4 mm elongated drops leading away from a body lying in a pool of blood. the the forward wall there is a sigzag pattern and on the walls to the right side there is a linear patter

Dna replication or repair occurs in a cell in all of thw following situations except when

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?