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Multiple Choice
Which term describes the alternate forms of a gene that contribute to genetic variability in nucleic acids?
A
Alleles
B
Chromatids
C
Loci
D
Exons
Verified step by step guidance
1
Understand that genes can have different versions or variants that exist at the same position on homologous chromosomes.
Recognize that these different versions of a gene are responsible for variations in inherited traits among individuals.
Recall the terminology used in genetics: 'Alleles' are the alternate forms of a gene found at the same locus (position) on homologous chromosomes.
Differentiate 'Alleles' from other terms: 'Chromatids' are duplicated chromosome strands, 'Loci' are the specific positions of genes on chromosomes, and 'Exons' are coding regions within a gene.
Conclude that the term describing alternate forms of a gene contributing to genetic variability is 'Alleles'.