Principles of Inheritance and Variation MCQ Questions & Answers in Botany

361. Gene mutation is

A Mutation in the genes of DNA

B Mutation in the phosphodiester linkage

C Mutation in the chromosomes

D Change in the sequence of nitrogenous bases

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362. Who first conducted experiments on evolution to prove biochemical origin of life

A Miller and Urey

B Darwin

C Lamarck

D Weismann

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363. A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?

A 25%

B 0%

C 50%

D 75%

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364. X-linked recessive gene is

A Always expressed in male

B Always expressed in female

C Lethal

D Sub lethal

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365. Manipulation of DNA in genetic engineering became possible due to the discovery of

A Restriction endonuclease

B DNA ligase

C Transcriptase

D Primase

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366. A person with 47 chromosomes due to an additional $$Y$$ chromosome suffers from a condition called

A Down's syndrome

B Superfemale

C Turner's syndrome

D Klinefelter's syndrome

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367. Which of the follwing is used as a best genetic vectorin plants

A Bacillus thuriengenesis

B Agrobacterium tumifaciens

C Pseudomonas putida

D All of the above

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368. True mutation was first discovered by

A Muller

B Morgan

C Stadle

D DeVries

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369. The plant which made Hugo -de vries famous is

A Antirrhinum majas

B Lathyrus odoratus

C Oenathera lamarckiana

D Pisum sativum

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370. Blue eye colour in human is recessive to brown eye colour. The expected children of a marriage between a blue eyed woman and a brown eyed man who had a blue eyed mother will be

A All black eyed

B All blue eyed

C All brown eyed

D One blue eyed and one brown eyed

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361. Gene mutation is

362. Who first conducted experiments on evolution to prove biochemical origin of life

363. A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?

364. X-linked recessive gene is

365. Manipulation of DNA in genetic engineering became possible due to the discovery of

366. A person with 47 chromosomes due to an additional $$Y$$ chromosome suffers from a condition called

367. Which of the follwing is used as a best genetic vectorin plants

368. True mutation was first discovered by

369. The plant which made Hugo -de vries famous is

370. Blue eye colour in human is recessive to brown eye colour. The expected children of a marriage between a blue eyed woman and a brown eyed man who had a blue eyed mother will be

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