MCQ
Leading strand during DNA replication is formed:
- AContinuously.
- BIn short segments.
- CFirst.
- DAhead of replication.
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$I.$ very long molecule
$II.$ double-stranded
$III. DNA$ or $RNA$
$IV$. complementary to a part of desired gene
The correct pair is
$I.$ In microinjection method foreign $DNA$ is directly injected into the nucleus of animal cell or plant cell by using micro needles or micro pipettes
$II.$ Microinjection method is used in oocytes, eggs and embryo
$III.$ Electroporation is the formation of temporary pores in the plasma membrane of host cell by using lysozyme or calcium chloride
$IV.$ In chemical mediated gene transfer method certain chemicals such as $\mathrm{CO}_{2}$ help foreign $DNA$ to enter the host cell
Which of the statements given above are correct?