Can There Be a Heterozygous Recessive Explain?

Textbook solution. Heterozygous is the state in which an allele contains one dominant gene and one recessive gene. ... Heterozygous recessive is not possible as the recessive gene doesn't express in the presence of a dominant gene. So only homozygous dominant, homozygous recessive and heterozygous dominant are possible.

Why is heterozygous recessive not possible?

No, there cannot be heterozygous recessive state. Any trait or characteristic is determined by gene that exists in two alternative forms called alleles, one is dominant allele and the other is recessive allele. ... A genotype is either homozygous dominant (TT), homozygous recessive (tt) or heterozygous (Tt).

Is it possible to have a heterozygous recessive?

If the alleles are heterozygous recessive, the faulty allele would be recessive and not express itself. Instead, the person would be a carrier. If the alleles are heterozygous dominant, the faulty allele would be dominant.