Question

How is it that a parent can give an allele not to show up in the phenotype

Answer 1

Answer:

Explanation:

n other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous ("hetero" meaning "different") for that allele. ... The dominance or recessivity associated with a particular allele is the result of masking, by which a dominant phenotype hides a recessive phenotype.

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Answer 2

If the allele is recessive it will not show in the phenotype IF it is accompanied by a dominant one (heterozygous chromosomes)