what alternate form of genes do nucleic acids have that allows them to offer variability?\no allele\no…

what alternate form of genes do nucleic acids have that allows them to offer variability?\no allele\no codon\no nucleotide\no chromosome
Answer
Brief Explanations:
An allele is an alternate form of a gene. Codons are sequences of three nucleotides in mRNA. Nucleotides are the building - blocks of nucleic acids. Chromosomes are structures that contain DNA and proteins. The alternate form of genes that allows variability is the allele.
Answer:
allele