Crossing over takes place between
Two chromosomes
Two non-homologous chromosomes
Two homologous chromosomes
None
Determination of one amino acid by more than one codon is due to
Crossing over takes place at a stage between
The formation of multivalents at meiosis in diploid organism is due to
The mean diameter of $DNA$ double helix is
In a double stranded $DNA$, the sequences of base pairs in one strand are $AGCTAAGCC$. What’s the complementary sequence on the other strand