MCQ
When one gene controls two or more different characters simultaneously, the phenomenon is called as:
- AApomixis
- BPleiotropy
- CPolyploidy
- DNone of the above
Explanation:
Pleiotropy is the condition in which a single gene influences more than one trait. Polyploidy is a condition in which individuals have more than two complete sets of chromosomes. Apomixis is a reproductive process in plants that superficially resembles normal sexual reproduction but there is no fusion of gametes.
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| $(a)$ Restriction endonuclease | $(i)$ Joins the $DNA$ fragements |
| $(b)$ Restriction exonuclease | $(ii)$ Extends primers on genomic $DNA$ template |
| $(c)$ $DNA$ ligase | $(iii)$ Cuts $DNA$ at specific position |
| $(d)$ Taq polymerase | $(iv)$ Removes nucleotides from the ends of $DNA$ |
Select the correct option from the following
$I$. Ensuring cross-pollination
$II$. Preventing self-pollination
$III$. Ensuring self-fertilisation
$IV$. Genetic control for self-fertilisation
Choose the correct statements from those given above