An allele is said to be dominant if | Filo
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Class 10

Science

Biology

Heredity and Evolution

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An allele is said to be dominant if

  1. It is expressed only in heterozygous combination.
  2. It is expressed only in homozygous combination.
  3. It is expressed in both homozygous and heterozygous condition.
  4. It is expressed only in second generation.
Correct Answer: Option(c)
Solution:
Alleles are the two individual genes in a particular gene pair that occupy the same locus or position on a homologous pair of chromosomes. An allele may be dominant or recessive. If the allele is expressed in both homozygous and heterozygous conditions, then it is a dominant allele.
So, the correct answer is 'It is expressed in both homozygous and heterozygous condition'.
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