Moderate

An allele is said to be dominant if:

Correct answer: C. It is expressed in both homozygous and heterozygous condition

  • A. It is expressed only in heterozygous combination
  • B. It is expressed only in homozygous combination
  • C. It is expressed in both homozygous and heterozygous condition
  • D. It is expressed only in second generation.

Explanation

As allele that masks the effect of another allele in a pair is called a dominant allele and such a trait is dominant.

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About Inheritance

Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.

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