A) fusion of male and vegetative cells
B) development of exine and entine
C) development of another wall cells
D) fusion of male cells.
Correct Answer: D
Solution :
: Like plant tissue cultures of diploid plants, cultures of haploid origin (anther culture) are difficult to maintain with genetic stability. Somaclonal variation occurs during long-term culture as well as, cultures tend to become diploid due to fusion of male cells. There is continuous increase in the proportion of diploid cells in the haploid culture. Isogenic diploids can be obtained by chromosome diploidization.
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