Recessive genes will always be masked by dominant genes. this is mendel's principle of 1.dominance 2.recession 3.segregation

Option A, Dominance

Explanation:

According to Mendel's principle of dominance , the following can happen

a) Dominance of allele is a form of inheritance of genetic trait in which one allele is recessive to other.

b) The dominant allele can be recessive to any other allele.

c) In a hetero zygote the characteristics associated with a dominant alleles are expressed as phenotype

d) Recessive traits are expressed only in an genotypically homozyous recessive individual

Hence, option A is correct

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some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a