Answer:
??? what is this. isme kya kerna he
Answer:
Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.
Answer:a. The normal gene function is required for the viability of the zebrafish.
Explanation:
It is mentioned that if the gene responsible for forming stripes on its body is inactivated by mutation then fish without stripes will produced.
This will lead to the absence of phenotypic character that is strips on the fish. The other genes which are responsible for the survival of the fish will function normally thus this will be untrue that normal functioning of the gene required for expressing horizontal strips is also necessary for the survival and viability of the zebrafish.
