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Most of the mutations are :
A
Harmful
B
Harmful and recessive
C
Beneficial
D
Dominant
Detailed Solution
Most mutations disturb the normal working of genes, so they are harmful.
Most mutant alleles are also recessive: one normal allele in a heterozygote usually makes enough of the normal product to mask the mutant effect.
Beneficial mutations are rare.
So most mutations are harmful and recessive.
Most mutant alleles are also recessive: one normal allele in a heterozygote usually makes enough of the normal product to mask the mutant effect.
Beneficial mutations are rare.
So most mutations are harmful and recessive.