Biology Inheritance / Variation & Genetics NUMS 2023
PMDC Verified Question 28 of 94
When both alleles of a gene pair are same, organism is said to be:
A
Heterozygous
B
Genotype
C
Homozygous
D
Phenotype
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Homozygous
Concept:

Zygosity describes the pairing of alleles inherited from the biological parents.

Solution:

  • If an organism inherits the exact same allele from both its mother and its father for a given trait (e.g., TT or tt), the gene pair is identical.
  • Such an organism is genetically termed homozygous for that trait.


Why other options are incorrect:

  • Heterozygous: Occurs when the alleles are different (e.g., Tt).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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