(i) Name the chemical used for doubling the chromosome number.

(ii) Name the improved variety of wheat which was developed through hybridisation that took 12 years.

Asked by Topperlearning User | 12th Jun, 2014, 11:10: AM

Expert Answer:

(i) Colchicine is used for doubling the chromosome number.

(ii) HUW 468 is an improved variety of wheat which took 12 years to develop through hybridisation.

Answered by  | 12th Jun, 2014, 01:10: PM