Multiple Choice
In the analogy "genotype is to _____ as phenotype is to _____", which pair of terms best completes the statement?
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1. Introduction to Genetics
Fundamentals of Genetics
Multiple Choice
In fundamental genetics, alternative forms of a gene are called what?
A
Alleles
B
Centromeres
C
Chromatids
D
Codons
Verified step by step guidance1
Understand the question is asking for the term used to describe different versions of the same gene.
Recall that genes can have multiple forms that differ slightly in their DNA sequence, which influence traits.
Identify that these different forms of a gene are called 'alleles' in genetics.
Recognize that 'centromeres' are parts of chromosomes where sister chromatids attach, not gene variants.
Note that 'chromatids' are duplicated chromosome strands, and 'codons' are sequences of three nucleotides coding for amino acids, so neither term fits the question.
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