Question

Which of the following describes an allele whose characteristic phenotype is masked by the presence of a second, different allele?
dominant
recessive
polygenic
codominant

Answer 1

Answer: The correct answer is- Recessive.

Allele is described as an alternative form of a gene. There are two forms of a gene that is dominant allele ( represented by capital letter) and recessive allele ( represented by small letter).

Recessive allele does not exhibit its phenotype in presence of dominant allele. In other words, dominant allele masks the expression of recessive allele.

Example of recessive allele- 't' for dwarf height of pea plant. It is masked by dominant allele 'T' that represents tall plant height.

Answer 2

The trait the phenotype that's masked with a different allele is a recessive.