The infectious stage of plasmodium that enters the human body is:

1. Sporozoites

2. female gametocytes

3. Male gametocytes

4. Trophozoites

Match the following diseases with the causative organism and select the correct option.

Identify the wrong statement with a reference to immunity.

(1) When ready-made antibodies are directly given, it is called “Passive immunity".

(2) Active immunity is quick and gives a full response.

(3) Foetus receives some antibodies from the mother, it is an example of passive immunity

(4) When exposed to antigen(living or dead) antibodies are produced in the host's body. It is called "Active immunity

The sequence that controls the copy number of the linked DNA in the vector, is termed :

1. Ori site

2. Palindromic sequence

3. Recognition site

4. Selectable marker

In-gel electrophoresis, separated DNA fragments can be visualized with the help of:

1. Ethidium bromide in UV radiation

2. Acetocarmine in UV radiation

3. Ethidium bromide in infrared radiation

4. Acetocarmine in bright blue light

Identify the wrong statement with regards to restriction enzyme

The specific palindromic sequence which is recognized by EcoRI is :

1. 5' -GGAACC-3'

    3'-CCTTGG-5'

2. 5'-CTTAAG-3'

    3'-GAATTC-5'

3. 5'-GGATCC-3'

    3'-CCTAGG-5'

4. 5'-GAATTC-3'

    3'-CTTAAG-5'

Which of the following statements is not correct?

1.  The proinsulin has an extra peptide called C-peptide

2.  The functional insulin has A and B chains linked together by hydrogen bonds.

3.  Genetically engineered insulin is produced in E-Coli.

4.  In man, insulin is synthesized as proinsulin. 

Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to

1. Fungal diseases

2. Plant nematodes

3. Insect predators

4. Insect pests

Match the organism with its use in biotechnology.

(a) Bacillus thuringiensis                (i) Cloning vector

(b) Thermus aquaticus                   (ii) Construction of first rDNA molecule

(c) Agrobacterium tumefaciens      (iii) DNA polymerase

(d) Salmonella typhimurium           (iv) Cry proteins

Select the correct option from the following:

    (a)   (b)   (c)   (d)

1. (iv)  (iii)   (i)    (ii)

2. (iii)  (ii)   (iv)   (i)

3. (iii)  (iv)  (i)    (ii)

4. (ii)  (iv)  (iii)   (i)