Use the Following Information When Answering the Corresponding Questions)

question 28

Multiple Choice

Use the following information when answering the corresponding questions) .
Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. They ident gene responsible for toxin production. The dominant allele T) codes for an enzyme that makes the toxin, and the recessive all
t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are determined see chart) and used to determine the actual allele frequencies in the population.
Figure 23.1
-Refer to Figure 23.1. Is this population in Hardy- Weinberg equilibrium?

• A) yes
• B) No; there are more heterozygotes than expected.
• C) No; there are more homozygotes than expected.
• D) More information is needed to answer this question.

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Definitions:

Cytoplasm

Region of a cell between the nucleus, or the nucleoid region of a bacterium, and the plasma membrane; contains the organelles of the cell.

Translation

The process by which the genetic code carried by mRNA is decoded to produce the specific sequence of amino acids in a polypeptide chain.

Transcription

The process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA) by the enzyme RNA polymerase.

Replication

The process of duplicating a molecule of DNA, ensuring that each new cell receives a complete set of genetic instructions.