Which of the following phenomena leads to variation in $DNA$?
Linkage, mutation
Recombination, linkage
Mutation, recombination
Aneuploidy, linkage
Describe test cross. why it is necessary ?
Edward's syndrome, Patau's syndrome and Down's syndrome are due to
Sexual reproducation leads to
If a diploid cell is treated with colchicine, then it becomes
Heterozygous tall and violet flowered pea plants were selfed and total $512$ seeds are collected. What will be total number of seeds for both heterozygous traits?