Question

which statement describes an allele?
○ a section of dna in which the code for a protein is located
○ the pair of dna sequences an organism has for a trait
○ the physical trait produced by an organisms genetic makeup
○ one variation of the code for a protein

Explanation:

An allele is a variant form of a gene. A gene is a section of DNA that codes for a protein. So, an allele is one variation of the code for a protein.

• A section of DNA in which the code for a protein is located is a gene, not an allele.
• The pair of DNA sequences an organism has for a trait is the genotype (combination of alleles), not an allele itself.
• The physical trait produced by an organism's genetic makeup is the phenotype, not an allele.

Answer:

one variation of the code for a protein