GATE Genetics, Cellular and Molecular Biology: Genetics: Mendelian inheritance, gene interaction, complementation, linkage, recombination, chromosome mapping, extrachromosomal inheritance – Previous Year Questions

8 GATE previous year questions on Genetics: Mendelian inheritance, gene interaction, complementation, linkage, recombination, chromosome mapping, extrachromosomal inheritance (Genetics, Cellular and Molecular Biology, Biotechnology) with answers and explanations, from every paper.

GATE 2021 BT Q43 (2 marks, Multiple choice) – Neurospora crosses yield: wild-type female × wild-type male → all wild-type; wild-type female × poky male → all wild-type; poky female × wild-type…
GATE 2021 BT Q49 (2 marks, Numerical answer) – A homozygous round-yellow pea is crossed with a homozygous wrinkled-green pea. F1 intercross produces 560 F2 progeny. The number with both dominant…
GATE 2022 BT Q27 (1 mark, Numerical answer) – Assuming independent assortment and no recombination, the number of different combinations of maternal and paternal chromosomes in gametes of an…
GATE 2023 BT Q30 (1 mark, Numerical answer) – Fabry disease in humans is a X-linked disease. The probability (in percentage) for a phenotypically normal father and a carrier mother to have a son…
GATE 2026 BT Q64 (2 marks, Numerical answer) – A disease-associated allele shows X-linked recessive inheritance. If the mother is a carrier of the disease, the father is genetically normal and the…
GATE 2025 BT Q30 (1 mark, Numerical answer) – The allele associated with albinism in humans is recessive (c). The probability that an albino male (cc) and a carrier female (Cc) will have an…
GATE 2025 BT Q53 (2 marks, Multiple select) – The blood group of the mother is A+ and that of the father is AB+. Which of the following statements is/are correct?
GATE 2024 BT Q16 (1 mark, Multiple choice) – Mendel's 'law of segregation' applies to the segregation of during gamete formation.