Question

True or false

-Somatic cell nuclear transfer to clone a sheep always leads to a transgenic sheep.

-cDNA is produced exponentially by reverse transcriptase.

-Theoretically, all of the cells in a bacterial colony on a plate are clones.  

-Transgenic mice generated via microinjection of the transgene into a fertilized egg are chimeric.

Answer 1

Q1. Somatic cell nuclear transfer to clone a sheep always leads to a transgenic sheep. False.

It will lead to form genetically identical or clone of the sheep.

Q2. cDNA is produced exponentially by reverse transcriptase. True.

cDNA is formed from processed mRNA which require reverse transcriptase. It is done because to remove the inteon part from DNA.

Q3. Theoretically, all of the cells in a bacterial colony on a plate are clones.  True.

Cells in a colony are derived from a single bacteria initially placed on the plate and thus are referred to as clone, or genetically identical cells.

Q4. Transgenic mice generated via microinjection of the transgene into a fertilized egg are chimeric. True.

Chimeric are genetically modified organisms which is formed from introduction of trasgene, here through microinjection.