A) shoot tip
B) anther
C) root tip
D) None of these
Correct Answer: B
Solution :
Haploids have a single genome as found in the gametes of the species. A haploid has only one copy of each chromosome and is highly sterile. Guha and Maheshwari (1964), developed a culture technique to produce haploid plants. It is called androgenic haploid culture, in which very young unopened sterilised flowers are opened to remove young anthers. Anthers are introduced over culture medium for 4 to 6 weeks, to give rise to large number of embryoids. Haploids are very useful in producing pure homozygous lines for breeding programme. Root tips and shoot tips are used as explant in the culture medium, to regenerate the plantlets. Such cultures are known as meristem culture. It is used in the production of virus-free plants and germplasm conservation.
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