Looking for classes? Ksquare Career Institute, Bengaluru →
Nucleus of a donor embryonal cell/somatic cell is transferred to an enucleated egg cell. Then after the formation of organism, what shall be true : -
A
Organism will have extranuclear genes of the donor cell
B
Organism will have extranuclear genes of recipient cell
C
Organism will have extranuclear genes of both donor and recipient cell
D
Organism will have nuclear genes of recipient cell
Detailed Solution
In somatic cell nuclear transfer (as used for Dolly the sheep), the nucleus of a donor cell is put into an egg cell whose own nucleus has been removed (enucleated).
So the nuclear genes of the organism come from the donor cell.
The cytoplasm, with its mitochondria (and their mitochondrial DNA), comes from the recipient egg cell. So the extranuclear genes come from the recipient cell.
The organism does not have nuclear genes of the recipient, because its nucleus was removed.
So the organism will have extranuclear genes of the recipient cell.
So the nuclear genes of the organism come from the donor cell.
The cytoplasm, with its mitochondria (and their mitochondrial DNA), comes from the recipient egg cell. So the extranuclear genes come from the recipient cell.
The organism does not have nuclear genes of the recipient, because its nucleus was removed.
So the organism will have extranuclear genes of the recipient cell.