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.

Which of the following statements regarding mixed cropping is/are false?

(a) In mixed cropping, the risk of total crop failure due to uncertain monsoon is reduced.
(b) Due to complementary effect of component crops, the yield of both crops increase.
(c) In mixed cropping, chances of pest infestation are greatly reduced.

Which of the following statements is/are true about wheat?

A. The hybrid of wheat and rye, triticale, is a man-made cereal.
B. Dwarf variety of wheat is due to a gene called Norin–10.
C. In wheat, cryopreservation of seeds is followed.
D. Artificial plant breeding is difficult in wheat.

Which of the following is the highest milk-yielding variety of cows?

Which of the following plant species would you select for the production of bioethanol?

Taichung Native-1”, a rice variety was introduced in India from

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called

Match the following:

Which of the following is not a micronutrient?

An Italian variety of bee introduced in the Indian apiculture is

Cloning is not meant for