Question

what alternate form of genes do nucleic acids have that allows them to offer variability?
○ allele
○ codon
○ nucleotide
○ chromosome

Explanation:

To solve this, we analyze each option:

• Allele: An allele is an alternative form of a gene. Different alleles can lead to genetic variability.
• Codon: A codon is a sequence of three nucleotides that codes for an amino acid, not an alternate gene form.
• Nucleotide: A nucleotide is the building block of nucleic acids (like DNA/RNA), not an alternate gene form.
• Chromosome: A chromosome is a structure containing many genes, not an alternate form of a single gene.

So the correct option is the one related to alternate gene forms, which is allele.

Answer:

A. allele