MCQ
Size of a typical eukaryotic cell is
- A$1-2 \, \mu \,m$
- ✓$10-20 \, \mu \,m$
- CAbout $0.1\, \mu \,m$
- D$0.02 -0.2\, \mu \,m$
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$I.$ 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?