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Hydroponic Gardening
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191.

In sweet pea gene C or P alone produces white flower, where as both C and P are needed to produce purple coloured flower. In a particular cross between two white flowered plants the offsprings were one half purple and one-half white. The possible genotypes of the parents is:

A.	Cc Pp x ccPp	B.	CCpp x ccPP
C.	ccPp x CCpp	D.	Ccpp x ccPp

192.

In the cymose inflorescence the flowers develop in:

A.	Basipetal succession	B.	Acropetal succession
C.	Centripetal succession	D.	None of the above

193.

In the flowering plants the process of fertilization is first discovered by:

A.	Robert Brown	B.	Strasburger
C.	Virchov	D.	Nawaschin

194.

In the ovary of 'marigold' the placentation is:

A.	Superficial	B.	Basal
C.	Marginal	D.	Axile

195.

In the pitcher plant, the pitcher is modification of:

A.	Stem	B.	Root
C.	Leaf	D.	Stem-branch

196.

In the simple ovary (of one carpel) there is one common type of placentation known as:

A.	Axile	B.	Parietal
C.	Central	D.	Marginal

197.

In wheat and oat there are _____ genes for red versus white kernels:

A.	Two	B.	Three
C.	Four	D.	Five

198.

In wheat, cross-pollination is:

A.	Less than 5%	B.	More than 5%
C.	15%	D.	50%

199.

In which one of the following crops maximum exploitation of hybrid vigour during the last three decades has been done?

A.	Wheat	B.	Rice
C.	Maize	D.	Cotton

200.

In which part of the cell, does protein synthesis take place?

A.	Mitochondria	B.	Nucleolus
C.	Nucleus	D.	Ribosomes