What is the problem in providing a bone marrow transplant to a patient of SCID as a treatment?

1. rejection of the graft by the recipient

2. graft-versus-host disease

3. cardiovascular failure

4. anaphylaxis

The advantage of using DNA polymerases from thermophilic organisms in PCR is that:

Using recombinant DNA technology, genes from a donor cell can be implanted into a bacterium for DNA replication and protein synthesis. The kind of cell(s) that can be used as gene donors in this technology is/are:

1. Bacteria only
2. Either yeast or bacteria only
3. Eukaryotic cells only
4. Any kind of cell

A gene carried by recombinant DNA is cloned when:
1. Its host bacterium divides by binary fission
2. It is transcribed
3. It is fragmented by restriction enzymes
4. It is hybridized

A piece of nucleic acid used to find a gene, by forming a hybrid with it, is called a
1. Probe
2. Vector
3. Restriction sequence
4. Retrovirus

In situ hybridization is used to :

A bacterium adds methyl group to its DNA, by a process known as modification, in order to:

A fragment of DNA, cut by a restriction enzyme, forms bonds with other DNA molecules that have
1. Been fragmented by the same restriction enzyme
2. Sticky ends
3. Plasmid component
4. Attached methyl group

Hybridization of mRNA with DNA can reveal which segment of the DNA are introns and which segment are exons. When the magnification is high enough to see the molecule, the introns appear as
1. Single stranded loops in a double stranded molecule
2. Separate fragments
3. Triple stranded nucleic acid molecules
4. Barr bodies

Which of the following primers would allow copying of the single-stranded DNA sequence 5' ATGCCTAGGTC?