MCQ
$DNA$ is double helix and
- AComplementary and parallel
- ✓Complementary and antiparallel
- CWithout super coils
- DAlways circular
The sequence of nitrogenous bases in one determines the sequence of nitrogenous bases in the other.
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| Column $I$ | Column $II$ |
| $A.$ Synapsis aligns homologous chromosomes | $(i)$ Anaphase $II$ |
| $B.$ Synthesis of $RNA$ and protein | $(ii)$ Zygotene |
| $C.$ Action of enzyme recombinase | $(iii)$ $G_2$ phase |
| $D.$ Centromeres do not separate but chromatids move towards opposite poles | $(iv)$ Anaphase $I$ |
| $(v)$ Pachytene |

$II.$ Differentiation
$III.$ Maturation
$IV.$ Senescence
Identify the correct sequence of the following events occurring in plants and choose the correct option accordingly