Question

1. Which kind of therapy was given in 1990 to a four-year-old girl with ADA deficiency?
(Adenosine Deaminase)
A. Radiation Therapy
B. Gene Therapy
C. Radiation Therapy
D. Immunotherapy
2. Restriction enzymes were discovered by
a. Smith and Nathans
b. Alexander Fleming
c. Berg
d. None
3. Klenow fragment is derived from
a. DNA Ligase
b. DNA Pol-I
c. DNA Pol-II
d. Reverse Transcriptase
4. Southern blotting is
a.Attachment of probes to DNA fragments
b.Transfer of DNA fragments from electrophoretic gel to a nitrocellulose sheet
c.Comparison of DNA fragments to two sources
d.Transfer of DNA fragments to electrophoretic gel from cellulose membrane
5. Plasmids are used as cloning vectors for which of the following reasons?
a. Can be multiplied in culture
b. Self-replication in bacterial cells
c. Can be multiplied in laboratories with the help of enzymes
d. Replicate freely outside bacterial cells

Answer 1

Answer:

To calculate the number of molecules in 4g of oxygen, we have, Moles of oxygen = 4/32 = 0.125mol, Molecules of oxygen = 0.125 * 6.022 * 10^23 = 7.52 * 10^22. 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g.

Answer 2

Answer:

Bro I know the first one only

Explanation:

First successful gene transfer in human was performed by F.Anderson. Ashi Disilva a 4-year girl was treated by replacing ADA gene in lymphocytes.

The girl was suffering from Severe Combined Immunodeficiency (SCID). Gene therapy was used for the treatment of ADA deficiency.

So, the correct option is 'Gene therapy'