Question

In crop improvement programme haploids are important because they

• A.
  require one half of nutrients
• B.
  are helpful in study of meiosis
• C.
  grow better under adverse conditions
• D.
  form perfect homozygous individuals on diploidization

Answer 1

The correct option is D

form perfect homozygous individuals on diploidization
In crop improvement programme, haploids are important because they form perfect homozygous lines.
Homozygous are the pure line selection plants resulting from self pollination.

In this way, considerable homozygosity is obtained. Haploids are those plants which possess a gametophytic number of chromosomes.

Haploids are used in plant breeding, especially for the production of homozygous plants and in their studies in the detection of mutation.
So the correct answer is ' Form perfect homozygous individuals on diploidisation'