Question

question 2 of 10
how does a gene affect the traits of a human?
a. the gene builds dna during transcription.
b. the gene has instructions for 10 proteins.
c. the gene causes certain ribosomes to form.
d. the gene allows the body to produce a protein.

Explanation:

Genes contain the instructions for making proteins. Proteins are involved in many biological processes and determine traits. For example, the gene for hemoglobin (a protein) determines how well red blood cells carry oxygen, which is related to the trait of oxygen - carrying capacity in the blood. Option A is incorrect because genes are made of DNA, not building DNA during transcription (transcription is making RNA from DNA). Option B is too vague as it doesn't mention the key role of proteins. Option C is incorrect as a gene usually has instructions for one or a few related proteins, not 10.

Answer:

D. The gene allows the body to produce a protein.