Question

25) Which of the following is the technology in which an immune cell is genetically engineered to be able to 'see' cancer cells and destroy them? A. PCR B. Stem Cell Technology C. Anti-Angiogenesis D. CAR-T Therapy

26) For research and forensic purposes, scientists need to separate DNA pieces to view a banding pattern. Separation of DNA based on their size is called A. PCR B. DNA sequencing C. gel electrophoresis D. CAR-T therapy

27) Why do antibiotics NOT work to inactivate viruses? A. Viruses can break down and inactivate antibiotics. B. Antibiotics inhibit DNA replication and viruses don’t have DNA. C. Antibiotics inhibit cell wall formation and viruses don’t have a cell well. D. Viruses make a competitive inhibitor of the antibiotic.

Answer 1

Ans. 25 - correct ans. Is option D

CAR T-cell therapy is rapidly emerging form of cancer treatment.

CAR T cells attach to a specific structure, called an antigen, on the surface of the targeted cancer cell. Once attached the T cells become activated and release toxins that kill the cancer.

CAR-T therapy which is chimeric antigen receptor- T cell therapy, this helps the antibody and antigen interaction to be studied. In this technique T cells are made in laboratory so that the cancer cells can be identified and killed.

Ans. 26 - correct ans. Is option C

Gel electrophoresis- it is a technique where the DNA is cut into fragments and put in on the gel so that due to the electric field applied.

The DNA gets separated according to the size. The smaller ones travel in the gel fast and the larger ones travel slow and this creates a ladder of banding patterns.

Gel electrophoresis is a technique used to separate DNA fragments according to their size. DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.

Ans. 27 - correct ans. Is option A

Viruses insert their genetic material into a human cell's DNA in order to reproduce.

Antibiotics cannot kill viruses because, bacteria and viruses have different mechanisms and machinery to survive and replicate. The antibiotic has no “target” to attack in a virus.

Antibiotics are a type of medicine which are used to treat bacterial infections, Viruses insert their genetic material into a human cell's DNA in order to reproduce.

Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate. The antibiotic has no “target” to attack in a virus.

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