If Cells Are Given a Very Short Exposure to Radioactive

question 59

Multiple Choice

If cells are given a very short exposure to radioactive DNA nucleotide precursors followed by unlabeled DNA precursors for an hour or so before fixation,where is most of the radiolabel located?

• A)in the cytoplasm
• B)associated with the nuclear matrix
• C)in the mitochondria
• D)in the DNA loops surrounding the nuclear matrix
• E)in the mesosome

---

Definitions:

Phenotypic Ratio

The proportion of different phenotypes observed in the offspring of a particular genetic cross.

Guinea Pigs

Small rodents often used as pets or in research as model organisms for biological studies.

Heterozygous

A genetic condition where an individual has two different alleles of a gene, one inherited from each parent, leading to variation in genetic expression.

Probability

A measure of the likelihood that an event will occur, often expressed as a numerical value between 0 and 1.