Principles of Inheritance and Variation MCQ Questions & Answers in Botany

231. A nutritionally wild type organism, which does not require any additional growth supplement is known as

A Holotype

B Auxotroph

C Prototroph

D Phenotype

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232. AABbCc genotype forms how many types ofgametes

A 4

B 8

C 2

D 6

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233. In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt

A All the offsprings will be tall with red fruit

B 25% will be tall with red fruit

C 50% will be tall with red fruit

D 75% will be tall with red fruit

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234. One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of $${F_2}$$ progenies that mutation is found in

A one-third of the progenies

B none of the progenies

C all the progenies

D fifty percent of the progenies

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235. The Finches of Galapogas islands provide an evidence in favour of

A Special Creation

B Evolution due to Mutation

C Retrogressive Evolution

D Biogeographical Evolution

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236. If a colourblind woman marries with a normal man. The offspring will be

A All colourblind

B All daughters normal and all son will be colourblind

C All normal

D All daughters will be colourblind and all sons will be normal

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237. Germplasm concept was proposed by

A Mendel

B Devries

C Aristoltle

D Weismann

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238. If dominant C and P genes are essential for the development of purple colour in sweet pea flowers, what would be the ratio of white and purple colour in a cross between CcPpx Ccpp

A 5 : 3

B 9 -.7

C 2:6

D 6 : 2

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239. A women with albinic father marries an albinic man. The proportion of her progeny is

A 2 normal : 1 albinic

B all normal

C all albinic

D 1 normal : 1 albinic

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240. If X/A Ratio of two Drosophila is 0.6 and 0.33 respectively what would be their sex

A Female and male

B Super female and super male

C Inter sex and super male

D Inter sex and super female

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231. A nutritionally wild type organism, which does not require any additional growth supplement is known as

232. AABbCc genotype forms how many types ofgametes

233. In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt

234. One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of $${F_2}$$ progenies that mutation is found in

235. The Finches of Galapogas islands provide an evidence in favour of

236. If a colourblind woman marries with a normal man. The offspring will be

237. Germplasm concept was proposed by

238. If dominant C and P genes are essential for the development of purple colour in sweet pea flowers, what would be the ratio of white and purple colour in a cross between CcPpx Ccpp

239. A women with albinic father marries an albinic man. The proportion of her progeny is

240. If X/A Ratio of two Drosophila is 0.6 and 0.33 respectively what would be their sex

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