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MCQs 1: A mutation is a change in_________________?

Chromosome number RNA DNA Chromosome structure
Answer Explanation

MCQs 2: RNA contains__________________?

Thymine Argenine Cystine Uracil
Answer Explanation

MCQs 3: Strands of DNA are bounded by___________________?

Icygen Carbon Hybrogen Nitrogen
Answer Explanation

MCQs 4: The name “Suicide bag” is given to___________________?

Ribosomes Centrosomes Microsomes Lysosmes
Answer Explanation

MCQs 5: The ATP formed in__________________?

Chloroplast Mitochondna Golgi bodies RNA
Answer Explanation

MCQs 6: Amount of DNA is the diploid cells____________________?

Varies with the age Coustant for all organismes Constant for particular organism None of the above
Answer Explanation

MCQs 7: Which are the necessary conditions for the hardy Weinberg principle for applying to genetic population________________?

Low mutation population High mutation ratio and small population Selective mating and small population No migration and large population
Answer Explanation

MCQs 8: Gene responsible for the synthesis of repressor is called__________________?

Operator gene Structural gene Regulator gene Promotor gene
Answer Explanation

MCQs 9: The small unit of DNA capable of undergoing crossing over and recommbination is________________?

Recon Muton Cistron Complan
Answer Explanation

MCQs 10: In a population gene frequencies remain constant when there is_________________?

Iubreeding Out breeding Random mating Selective mating
Answer Explanation

MCQs 11: DNA is genetic material was first discovered by____________________?

Attmann (1889) Crick (1953) Sressler (1968) Avery et al (1944)
Answer Explanation

MCQs 12: Ieucaena lencocephala is a popular tree for______________________?

Beautification Seasonal fruit Medicinal plant Nutritive forage
Answer Explanation

MCQs 13: Maximum vegetable crops belong to the family____________________?

Solanaceae Cruciferae Cucurbitaceae Legumunaceae
Answer Explanation

MCQs 14: The term vertical resistance and horizontal resistance were first used by________________________?

Van der plank (1963) Karpechenko (1927) Hull (1945) Correns (1900)
Answer Explanation

MCQs 15: A gene which enhances the natural mutations rate of another gene in the same genome is kanown as___________________?

Mutable gene Mutator gene Recepror gene Articulator gene
Answer Explanation

MCQs 16: Gametophytic self incompatibility was first reported in___________________?

Lena sativa Nicotine sandarac Set aria sphacelata Scale cereals
Answer Explanation

MCQs 17: Seed germination in typhoin walermelon can successfully be obtained by____________________?

Scarification Seed risking Seed cot removal All the above
Answer Explanation

MCQs 18: Prescribed germination percentage of foundation seed of groundnut____________________?

70 20 90 95
Answer Explanation

MCQs 19: In oat an site-specific cross between Ivena sativa and A busantus_____________________?

Incompatible Partially fertile Sterile Fully fertile
Answer Explanation

MCQs 20: Reciprocal recurrent selection is effective with___________________?

Incomplete Complete dominance Over dominance All the above
Answer Explanation

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