In the fundamentals of genetics, the different forms of a gene are called what?

• A. Centromeres
• B. Alleles
• C. Chromatids
• D. Phenotypes

Answer: (B)

Verified step by step guidance

1. Understand that genes can have different versions or forms that result in variations in inherited traits.
2. Recall the terminology used in genetics to describe these different forms of a gene.
3. Identify that the term for different forms of a gene is 'alleles'.
4. Recognize that 'centromeres' refer to the part of a chromosome where sister chromatids are joined, not gene forms.
5. Note that 'chromatids' are duplicated chromosomes and 'phenotypes' are observable traits, neither of which describe gene forms.