Asked in Premeth past paper pool — Biology

The given diagrams show the gene(s) and their phenotypic effect(s).The CORRECT depiction of pleiotropic inheritance is:

Correct answer: C. Option C

  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Explanation

The correct depiction of pleiotropic inheritance is shown in Option C. Pleiotropy occurs when one gene influences multiple phenotypic traits. In Option C, a single gene is shown to have effects on multiple traits, which aligns with the definition of pleiotropy. Options A is incorrect as they depict a single gene affecting only one trait. Option B is incorrect because it illustrates multiple genes affecting 1 phenotype , which is not characteristic of pleiotropy.Option D represents a very complex interaction among genes and phenotype.

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About Mendel's Laws of Inheritance

Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.

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