Agriculture · all questions

Genetics And Plant Breeding
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Q141

A common crop of natural autopolyploid grown which is

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Q142

Match the following columns:

Column I (Name of the scientist)	Column II (Area of the work)
a. Jones	1. Law of homologous series in variation
b. Tysdal	2. Poly cross test
c. Muller	3. Double cross maize hybride
d. Vavilov	4. X-ray induced mutations

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Q143

RNA & Protein synthesis takes place during which phase of cell cycle?

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Q144

Consider the following statements associated with self-incompatibility in crop plants
1. Heteromorphic system shows only gemetophytic control of self-incompatibility.
2. Both sporophytic and gametophytic controls of self-incompatibility are found in homomorphic system.
Which of the statements given above is/are correct?

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Q145

Sometimes the homologous chromosomes fail to pair in prophase of meiosis the situation is known as

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Q146

The fruit developed from single ovary is called as

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Q147

In gametophytic system of self-incompatibility fully incompatible will result from a cross between

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Q148

Method of creating variation in asexually propogated crop is

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Q149

A male plant of chromosome pp pollinates the plant having chromosome type PP. The expected chromosome in embryo and endosperm

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Q150

Global Gene Bank of Sorghum is located at

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Q151

The transfer of pollen from the anther of a flower to the stigma of different flower is known as

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Q152

When the pollination through insects, its called

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Q153

Match the following columns:

Column I	Column II
a. PEP	1. Light reaction
b. RuBP	2. Hatch and Slack cycle
c. Hill reaction	3. Calvin cycle
d. Blackmann	4. Dark reaction

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Q154

Water rises through the xylem mainly due to

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Q155

Repressor protein binds to which site in Lac Operon model?

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Q156

Chromosomes are best seen in

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Q157

Match the following columns:

Column I (Term)	Column II (Brief description)
a. Cell culture	1. Regeneration of a plant from a single cell in nutrient medium.
b. Protoplast culture	2. Regeneration of a plant from naked single cell in culture medium.
c. Organ culture	3. Regeneration of plant from a organ like, anther, ovule; bud.
d. Meristem culture	4. Regeneration of a plant from tissues of stem up, root up, etc.

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Q158

A fertilized mature ovule which possesses an embryonic plant, food reserve and protective coating in a plant species is

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Q159

The chromatin which permanently remains in the heterochromatic region is

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Q160

For Hybrid seed production of onion which system is used?

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