Barbara McClintock Is Most Closely Associated with Which of the Following

question 46

Multiple Choice

Barbara McClintock is most closely associated with which of the following?

• A)the initial discovery of genetic transposition
• B)the discovery of transposable elements in corn
• C)the mutation rate in translocation heterozygotes
• D)the demonstration of the presence of transposable elements in polytene chromosomes

---

Definitions:

Chromosome Number

The total count of chromosomes present in the nucleus of a cell, specific to each species.

Diploid

An organism or cell having two complete sets of chromosomes, typically one set from each parent.

Prophase I

The first stage of meiosis I where chromosomes condense, pair up, and exchange genetic material through crossing over, essential for genetic diversity.

Homologous Chromosomes

Pairs of chromosomes in a diploid organism that are similar in size, shape, and gene content, one inherited from each parent.