Question

In the Mendelian convention, the usage of capital letters is to indicate ______ alleles and lower-case letters is to indicate _____ alleles.

• A. Recessive, dominant
• B. Dominant, recessive
• C. Heterozygous, homozygous
• D. Homozygous , heterozygous

Answer 1

The correct option is B

Dominant, recessive

In Mendelian convention, a capital letter is used to denote the dominant allele of a gene and a small letter for the recessive allele of the gene. E.g. 'Y' is the dominant allele responsible for yellow seed coat while 'y' is the recessive allele responsible for green seed coat in pea plants.