It is easier to culture plants cells in vitro as compared to animal cells. Why?

1

(a)

1. Plant cells retain the power of division for comparavely longer periods than animal cells.
2. Animal cells become mature just after the embryonic stage and hence cannot be cultured.

How are two following varieties of sugarcane different from reach other?
(i) Saccharum Barberi
(ii) Saccharum officinarum

1

(a)

(i) Saccharum Barberi grows in North India, has poor sugar contents and yield.
(ii) Saccharum officinarum grows in South India, has thicker stems, more content, and yield but cannot be grown in North India.

It is estimated that more than 70% of the world livestock population is in India and China. Yet they contribute only 25% of the world’s farm produce .What does it indicates. How can we improve it?

1

(a)

The per unit productivity is very low. So in addition to conventional practice of animal breeding & care, new technologies also have to be an applied.

As the population is continuously increasing and land for agriculture is decreasing. So how we can overcome food scarcity problem. Suggest two measures.

1

(a)

Sea food fisheries
Use DNA modulation technique for better prospects in agriculture.

Genetic variability is the root of any breeding program. How can these naturally occurring genetic variations be used for benefit to mankind and the biosphere in general.

1

(a)

Out breading-unrelated animals of a variety
Cross breading-between different breeds
Inter-specific hybridization between different species

Following are the steps in a particular process. Name the process and fill in the steps that are given as blanks.

1

(a)

a) Evaluation and selection of parents
b) Selection and testing of superior recombinants.

MOET is a programme for heard improvement. Expand this term and arrange the following step in correct sequence.
a) Produce 6-8 egg.
b) A cow is administered hormones with FSH like activity.
c) Mating the animal with an elite bull.
d) Transferred to surrogate mothers.
e) Fertilized eggs at 8-32 cell stages are recovered non surgically.

1

(a)

[ b,a,c,e,d ]

250 g of micro-organism due to its high rate of biomass production can be expected to produce 25 tones of protein. Write scientific name of this organism. How can it decide the future of mankind in the space?

1

(a)

Methylophilus Methylotrophus.   Less load of food on the space ship, production of    food as and when required outside the dimensions of biosphere.

How does mutation breeding artificially occur in plants?

1

(a)

Chemicals and gamma radiations

What is meant by micro-propagation?

1

(a)

Methods of producing plants by tissue culture.

What are the disease resistence varities of Brassica and wheat?

1

(a)

Brassica-Pusa swarnim ,Wheat-Himgiri

Name the Indian scient, whose efforts brought 'green revolution' in India.

1

(a)

M.S. Swaminathan

Write down the difference between pisciculture and aquaculture.

1

(a)

Pisciculture is the method of culture of fishes.Aquaculture is the culture of aquatic animals.

How does MOET help in cattle breeding?

1

(a)

Successful production of hybrids are high, the herd size increased in a short time.

The Indian Agricultral Research has released several varieties of crop plants.Name the three plants with their biofortification.

1

(a)

Vit-A enriched carrot and spinach,protein enriched beans,Vitamin-C enriched bittergourd and mustard.