Question

what is a gene?
○ a section of a protein that codes for dna
○ the alternate version of a trait
○ the visible trait in the f₁ generation
○ a section of dna that codes for a specific trait

Explanation:

To determine the correct definition of a gene, we analyze each option:

• The first option is incorrect because genes are part of DNA, not proteins coding for DNA.
• The second option describes an allele, not a gene.
• The third option refers to a phenotype (visible trait) in the F₁ generation, not a gene.
• The fourth option correctly defines a gene as a section of DNA that codes for a specific trait.

Answer:

D. a section of DNA that codes for a specific trait (assuming the options are labeled A to D in order, with the last option being D)