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10. Which of the following enzymes is absent in a person suffering from Alkaptonuria? (A) Tyrosinase (B) Homogentisic acid oxidase (C) Catechol dioxygenase (D) Phenylalanine hydroxylase Alkaptonuria Explained: Homogentisic Acid […]

9. A man having a dominant genetic trait (TT genotype) can taste phenylthiocarbamide (PTC), marries a woman who cannot taste PTC. The PTC tasting ability of their biological son and […]

8. A frameshift mutation is caused by ____. (A) 5-Bromouracil (B) Acridine (C) Glutathione (D) Hypoxanthine Frameshift Mutation Explained: How Acridine Causes Frameshift Mutations Introduction Mutations are permanent alterations in […]

7. The number of “Barr Bodies” present in a somatic cell of a woman suffering from Turner syndrome is ____. (A) 0 (B) 1 (C) 2 (D) 3 Barr Bodies […]

6. In a population at Hardy-Weinberg equilibrium, for gene-X only two alleles, namely A and a, are found. If frequency of allele A is 0.2 and the frequency of allele […]

5. The maximum number of genotypes possible for gametes formed from a diploid cell of the genotype AaBBCcDd is _____. Maximum Number of Gamete Genotypes from AaBBCcDd Explained Introduction Gamete […]

4. For a gene present on human chromosome 4, the maximum number of alleles that may be detected by sequencing the genome of 5 males and 10 females is _____. […]

3. The difference between mitosis and meiosis I is (A) Sister chromatids separate in mitosis, whereas homologous chromosomes separate in meiosis I (B) The nuclear membrane is absent during mitotic […]

2. In a genetic cross between plants bearing violet flowers and green seeds (VVGG), and white flowers and yellow seeds (vvgg), the following phenotypic distribution was obtained in the F₂ […]

1. If the blood groups of mother and father are AB and O, respectively, what are the blood groups possible for their child? (2021) (A) AB or A (B) AB […]