1. When will a recessive trait show its effect?
a. Even if no recessive genes for that trait are
present
b. In the presence of one recessive gene
c. When two recessive genes for a trait are present
d. Only if the mother has the recessive gene

Option c

Explanation:

A recessive trait will only appear if the if two recessive alleles for a trait are present. if present coupled with a dominant allele, its effect will be masked by the dominant allele. Although for an X linked condition that shows the recessive pattern of inheritance. In the males, they only need to have just one copy of that particular recessive allele.

Option C.

When two receive genes for a trait are presence.

Explanation:

Recessive allele or genes is the gene that is not expressed in a trait when there a dorminant gene. It's effect is always masked by dorminant gene .

A recessive trait can be expressed phenotypically if a person inherit

homozygous recessive allele.

For example the recessive allele for dwarf is t. If a person inherit two receive allele for dwarf need (tt), the dwarf trait will be expressed phenotypically.

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