Question

Write a term for an allele of a character that expresses itself only in homozygous condition

Answer 1

The recessive allele only expresses itself in homozygous conditions

Answer 2

ANSWER :-

The term is "RECESSIVE".
An allele of a character that expresses itself only in homozygous condition is known as the recessive allele.

EXTRAS :-

1. Homozygous combinations of genes constitute genotypes that are made up of wild, original, non mutated, dominant alleles only.
2. Homozygous combinations are found in the progeny that are produced as a result of pure breeding or true breeding or genetic selfing of pure-line parents.
3. The progeny produced through pure breeding are referred to as "Pure-line individuals".
4. Examples of homozygous combinations are as follows- 

• In the context of height, TT (Homozygous tall) and tt (Homozygous dwarf).
• In the context of colour of flowers, RR (Homozygous red) WW(Homozygous white).