Question

Phenotypically dominant individuals
1. Homozygous only
2. Heterozygous only
3. Neither homozygous nor heterozygous 4. Either homozygous or heterozygous​

Answer 1

Answer:

1. Homozygous only

like when you get correct answer

Answer 2

Correct option is option 4.

Explanation:

• For example, In pea plant tallness is a dominant phenotype and dwarfness is recessive phenotype.
• tallness is represented by T gene and t gene represent dwarfness. When T and t gene stay together expression of T gene take place as it is dominant. T gene mask the expression of t gene.
• a phenotypically dominant individual can show its dominant phenotype either in presence of a single copy of dominant gene i.e. Tt (heterozygous) or in presence of two copy of dominant gene i.e. TT (homozygous dominant).
• so phenotypically dominant individual are either homozygous dominant or heterozygous