MCQ
What is the basis of classification of chromosomes?
- APosition of Telomeres.
- ✓Position of centromere.
- CSize of arms of chromosome.
- DAll of the above.
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$(a)$ In equisetum the female gametophyte is retained on the parent sporophyte.
$(b)$ In Ginkgo male gametophyte is not independent.
$(c)$ The sporophyte in Riccia is more developed than that in Polytrichum.
$(d)$ Sexual reproduction in Volvox is isogamous.
$(e)$ The spores of slime molds lack cell walls.
How many of the above statement are correct?
| Column$-I$ | Column$-II$ |
| $(a)$ Basal | $(i)$ Mustard |
| $(b)$ Axile | $(ii)$ China rose |
| $(c)$ Parietal | $(iii)$ Dianthus |
| $(d)$ Free central | $(iv)$ Sunflower |
Choose the correct answer from the following options
$R-$ Exchange of $DNA$ in chromosome seen in mitosis.