plant breeding and genetics MCQs – Page 14

Practise focused plant breeding and genetics questions with marked answers for exam preparation and subject revision.

plant breeding and genetics Mcqs

261. Absence of chlorophyll in a plant is known as__________________?
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A. Albinism

B. Acrodsome

C. A gouri

D. None of the above

262. In meiosis homologous chromosomes separate from each other in ______________________?
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A. Auaphase I

B. Anaphase II

C. metaphase I

D. Metaphase II

263. Whisky is distilled from__________________?
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A. Fermented juices of fruits

B. Raw grains

C. Legume fruits

D. Fermented mash of malted or unmalted cereals and potatoes

264. Meiosis is significant because___________________?
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A. Occurs only in somatic

B. Restores original number of chromosomes

C. Produces identical cells

D. Doubling of DNA content in the cell

265. Two allelie genes are located on_______________________?
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A. Two non homologous chromosomes

B. Same chromosomes

C. Two homologous chromosomes

D. Any two chromosomes with one each

266. A useful process for determining whether an individual is homozygous or heterozygous is_____________________?
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A. Back crossing

B. Cross breeding

C. Inbreeding

D. Self fertilization

267. Seed is___________________?
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A. Developed egg after fertilization

B. Seveloped ovary after fertilization

C. None of the above

D. Transformcd ovary after fertilization

268. Red (RR) is crossed with white (ww). All the (Rw) offsprings are pink this is an indication that the R gene is_________________?
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A. Incomplete dominant

B. Dominant

C. Mutant

D. Recessive

269. Which are the necessary conditions for the hardy Weinberg principle for applying to genetic population________________?
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A. Selective mating and small population

B. No migration and large population

C. High mutation ratio and small population

D. Low mutation population

270. The physical appearance of an organism is denoted by____________________?
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A. Photocopy

B. Phenotype

C. Prototype

D. Apheliotropic

271. Plastids bring about___________________?
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A. Excretion

B. Respiration

C. Secretion

D. Conversion of light energy into chemical energy

272. Episodes may be factor in____________________?
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A. Dominance

B. Chromosomal inheritance

C. Cytoplasm inheritance

D. Incomplete dominance

273. If a plant is heterozygousand is designated (BbMm)and produces two kinds of gametes either (BM)or (bm), then the possibility of (bm) gametes fertilizing either (BM) or (bm) is_________________?
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A. 1-Jan

B. 4-Jan

C. 0/1

D. Half

274. The experimental design which control fertility variation in one direction is known as____________________?
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A. LSD

B. AD

C. SPD

D. RBD

275. haploids are better for mutation studies because in them all the mutations whether recessive or dominant are expressed as_______________?
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A. There is only one alleles of each gene present in each cell

B. Non3e4 of the above

C. There are two alleles of each gene in each cell

D. There are many alleles of each gene in each call

276. Who arrang the following associated with genetic engineering___________________?
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A. Watson

B. Morgan

C. Koruna

D. Crick

277. Which is the suitable perennial grass for lean periods__________________?
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A. Marvel

B. Para

C. Napier

D. Anjan

278. Which one of the following does not contain RNA_______________?
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A. Nuclcolus

B. Ribosomes

C. Plasmalemma

D. Chromosome

279. The slow process by which new types of organisms arise from existing forms by genetics variation is called_______________________?
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A. Mutation

B. Evolution

C. Polyploidy

D. Genetics

280. All the individuals derived by vegetative propagation from a single individual is known as___________________?
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A. Affects more than one character

B. Affects only one character

C. Affects more than ten characters

D. Affects more than five characters

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