Free Biotechnology And Its Applications (Daily Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Biotechnology And Its Applications (Daily Quiz: 1) Time:

Question-1

A transgenic food crop which may help in solving the problem of night blindness in developing countries is

(a)

(b)

(c)

(d)


Question-2

Match column-I with column-II and identify the correct option.
Column - IColumn - II
A. Gene therapyI. Rhizobium
B. BiofertilizerII. Cry gene
C. Bt cottonIII. SCID
D. HumulinIV. Diabetes
Codes:

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

Gene therapy is the first clinical therapy which is given to a 4 year old girl with adenosine deaminase deficiency (caused due to deletion of the gene for adenosine deaminase).

Biofertilizer is a substance which contains living microorganisms which, promotes growth by increasing the supply or availability of primary nutrients to the host plant. Bio-fertilizers such as Rhizobium, Azotobacter, Azospirilium and blue green algae (BGA) have been in use a long time.

Bt cotton is a genetically modified variety of cotton producing an insecticide. Bt cotton was created through the addition of genes encoding toxin crystals in the Cry group of endotoxin. When insects attack and eat the cotton plant the Cry toxins are dissolved due to the high pH level of the insects stomach.

Humulin is used for a preparation of insulin produced by genetic engineering and structurally identical to insulin made by the human pancreas. It is used to treat diabetes.


Question-3

Which of the GMO is used by biotechnology?

(a)

(b)

(c)

(d)


Question-4

Which of the following Bt crops is being grown in India by the farmers?

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Bt cotton is being grown in India by the farmers. Bt cot-ton is pest resistant plant which could decreased the pesticides used. Bt toxin is produced by a bacterium Bacil-lusthusringiensis (Bt for short). Bt toxin gene has been cloned from the bacteria and been expressed in plants to provide resistance to insects without the need for insecticides.


Question-5

Read the following statements and choose the correct statements.
  1. Gene therapy has been tested on a large number of patients with a wider variety of inherited genetic disorders, and in numerous cases it has produced a complete cure.
  2. Genetic engineering has been used to produce insulin for curing the diabetes.
  3. DNA hybridization is the base pairing of DNA from two different sources.
  4. Genetic engineering is a technique of plant breeding.

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

Statement (ii) and (iii) are correct.


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