Which one of the following is not s secondary metabolite?

In tissue cultural medium, the embryoids formed from pollen grains is due to

Selection of homozygous plant is

By which of the following methods, new and better varieties of plants can be formed? 

The term 'totipotency' refers to the capacity of a:

What is the difference between a breed and a species? Give an example for each category.

A few statements are given below followed by a set of terms in a box.Pick the correct term and write it against the appropriate statement.
(a) mating of closely related individuals within the same breed.
(b) mating of animals of same breed but having no common ancenstors on either side for 4-6 generators on either side for 4-6 generations.
(c) Mating of animals of two different species.
(d) Mating of animals belonging to different breeds
(i) Cross breeding
(ii) Interspecific hybridisation
(iii) Outbreeding
(iv) outcrossing
(v) In breeding

What is meant by germplasm collection? Why is it necessary?

Why is the selection process after hybridisation very crucial in breeding pro-grammes?

Write the economic importance of honey bee.

MOET is good technogy to the herd size of high - yielding cattle. How is it done? Explain the procedure.

Expand MOET. Explain the procedure of this  technology in cattle improvement.

Define articial insemination.What are its advantages over conventional breeding?

Give one example of disease caused by each of fungi, bacteria and viruses in crop plants

Brefly describe various steps involved in plant breeding.

If your family owned a dairy farm, What measures would you undertake to improve the quantity and quantity of milk production?

Enumerate the points that have to be considered for successful bee-keeping.

How are morphological and biochamical/physiogical charracteristics of plants associated with resistance to insect pets? Give any five examples of the features and the name of the pest, which each is resistant to.