Strategies for ...

Picking up plants with superior phenotype for further propagation is

Which of the following statements is/are correct?

(1) Plants developed through suspension cultures generally exhibit genetic variations.
(2) Plants regenerated via organogenesis from callus cultures generally do not exhibit genetic variations.

Which of the following statements is/are true regarding artificial insemination?

(a) Through selective breeding, animals of desired characteristics cannot be obtained.
(b) It is a very cheap and unviable method.
(c) It prevents the spread of certain diseases and sterility due to genital diseases.

Match List I (Zoological names) with List II (Common names) and select the correct answer using the codes given below:

Which of the following is a high-yielding variety of soybean?

The superiority of the hybrid over either parent in one or more traits is

Which of the following options is/are the advantage(s) of crop rotation?

Best method to increase crop yield is

Match the following: 

In tissue culture, which of the following are true for a suspension culture?

A. Suspension culture consists of single cells and small groups of cells.
B. They must be constantly agitated at 100 to 250 rpm (revolutions per minute).
C. Suspension culture is maintained in a medium usually gelled with agar.
D. The cultures grow in two to three weeks.
E. Usually, the medium has the auxin 2,4-D.