What will be the resolution of a compound microscope where numerical aperture given is 1.5 at 240 wavelength of light?

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#Question id: 1582

#Biochemistry

The EBV antigen fragments will be presented by the virus-infected cells along with which of the following?

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#Question id: 20386

#Biochemistry

Within the human population there are millions of single base variations, called 

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#Question id: 12932

#Biochemistry

Why mRNA cannot be used directly in cloning?

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#Question id: 12933

#Biochemistry

Choose the correct order for the cloning process.

1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.

2. mRNA cannot be used directly in cloning.

3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.

4. The cDNA may be inserted into vectors and then cloned.

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#Question id: 12934

#Biochemistry

Reverse transcriptase enzyme is isolated from____

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#Question id: 12938

#Biochemistry

What is the main advantage of using Yeast Artificial Chromosome based vector over other vectors?

1. It has ability to clone very large fragments of DNA.

2. YAC vectors do not contain origin of replication sites 

3. It has insert  range up to 2000 kb.

4. It help in genome mapping and sequencing projects.