41. In 1991 male determining gene ___ was discovered on y-chromosome.
(a) SRY✅
(b) SSy
(c) CIT
(d) CAT
42. The phenotypic ratio of F\(_2\) generation in law of independent assortment is:
(a) 3:1
(b) 9:3:2:1✅
(c) 9:3:3:2
(d) 9:3:3:1
43. A cross during which inheritance of two traits is studied at a time is:
(a) Monohybrid
(b) Dihybrid✅
(c) Both a and b
(d) None
44. The offspring's of two true breeding parents are named by Mendal as:
(a) F\(_1\) or first filial generation✅
(b) F\(_2\) or second filial generation
(c) F\(_3\) or 3rd filial generation
(d) None
45. The trait which appeared in F\(_1\) generation was named by Mendal as:
(a) Recessive
(b) Healthy
(c) Dominant✅
(d) all
46. The trait which was hidden in F\(_1\) generation named as:
(a) Homozygous
(b) Recessive✅
(c) Super
(d) Unfit
47. When both alleles of a gene pair in an organism are same, the gene pair is said as:
(a) Homozygous✅
(b) Heterozygous
(c) Heptozygous
(d) All above
48. When both genes of an allele pair are different, the organism is ___ for that pair:
(a) Heterozygous✅
(b) HemozygousHemozygous
(c) Multizygous
(d) None
49. An individual with a heterozygous genotype is called:
(a) Homozygous
(b) Heterozygous✅
(c) Homozygote
(d) Heterozygote
50. "Two coexisting alleles of an individual for each trait
segregate during gamete formation, so that each
gamete get are of the two alleles" this is called,
(a) Law of independent assortment
(b) Law of segregation✅
(c) Law of unification
(d) Law of inheritance
51. DNA consists of:
(a) Nucleotides✅
(b) Neocleotide
(c) Nucleus
(d) Dexoxyribose
52. Nucleotide consists of:
(a) Nitrogenous base
(b) Phosphate group
(c) 5-C sugar
(d) All above✅
53. Which is the heredity material:
(a) DNA✅
(b) ribosomes
(c) Proteins
(d) Nucleus
54. Watson and Crick revealed structure and replica
of:
(a) DNA✅
(b) RNA
(c) Ribosome
(d) Nucleus
55. Which has made possible to bring desirable change in animals and plants:
(a) Genetic engineering
(b) Recombinant DNA technology✅
(c) Biochemistry
(d) None
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