Biology Inheritance / Variation & Genetics SZABMU 2024 Reconduct
PMDC Verified Question 16 of 94
When both the alleles of a gene pair are same, the organism is said to be:
A
Heterozygous
B
Genotype
C
Homozygous
D
Phenotype
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Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Homozygous
Concept:

Zygosity refers to the degree of genetic similarity for a specific trait inherited from parents.

Solution:

  • If an organism inherits two identical alleles for a specific gene (e.g., TT or tt), its genetic state is termed homozygous.
  • These alleles will produce the same outcome, making the organism "true-breeding" for that specific trait.


Why other options are incorrect:

  • Heterozygous: The condition of having two different alleles (e.g., Tt).

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