Plasmids are ______.

(a)

circular protein molecules

(b)

required by bacteria

(c)

tiny bacteria

(d)

confer resistance to antibiotics

The process of recombinant DNA technology has the following steps
I. amplication of the gene
II. Insertion of recombinant DNA into the host cells
III. Cutting of DNA at specific location using restriction enzyme .
IV. Isolation of genetic material (DNA) Pick out the correct sequence of step for recombinant DNA technology.

(a)

II, III, IV, I

(b)

IV, II, III, I

(c)

I, II, III, IV

(d)

IV, III, I, II

Assertion (A): Agrobacterium tumifaciens is popular in genetic engineering because this bacterium is associated with the root nodules of all cereals and pulse crops
Reason(R): A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the cross with which bacterium is associated.

(a)

Both assertion and reason are true. But reason is correct explanation of assertion.

(b)

Both assertion and reason are true. But reason is not correct explanation of assertion.

(c)

Assertion is true, but reason is false.

(d)

Assertion is false, but reason is true

(e)

Both assertion and reason are false.

Some of the characteristics of Bt cotton are ______.

(a)

Long fibre and resistant to aphids

(b)

Medium yield, long fibre and resistant to beetle pests

(c)

high yield and production of toxic protein crystals which kill dipteran pests.

(d)

High yield and resistant to ball worms

Zymology deals with __________

(a)

Study of yeast fungus and its practical applications.

(b)

Study of fermentation and its uses.

(c)

Study of Bioreactors and their construction methodology.

(d)

Study of zymase producing microbes and its benefits.

Select the correct restriction enzyme which breaks the phosphodiester bond within a DNA molecule.
(i) Ba131
(ii) Hind II
(iii) BamHI
(iv) Pvul

(a)

i and iii

(b)

i, ii and iii

(c)

ii, iii and iv

(d)

i only

A vector should________
(i) contain suitable marker
(ii) contain ori site
(iii) have poly linkess
(iv) be small in size

(a)

i, ii and iii

(b)

ii, iii and iv

(c)

i, ii and iv

(d)

all the above

Statement 1: Liposomes are the artificial lipoprotein vesicles.
Statement 2: Liposomes are highly used in gene transfer.

(a)

Statement 1 is correct and Statement 2 is also correct.

(b)

Statement 1 is correct and Statement 2 is incorrect.

(c)

Both the statements are incorrect.

(d)

Statement 1 is incorrect and Statement 2 is correct

Statement 1: Bioventing procedure increases 02 flow to accelerate degradation of pollutants.
Statement 2: Bioaugmentation uses microbes to recover metal pollutants from contaminated sites.

(a)

Statement 1 is correct and Statement 2 is also correct.

(b)

Statement 1 is correct and Statement 2 is incorrect

(c)

Both the statements are incorrect.

(d)

Statement 1 is incorrect and Statement 2 is correct.

Which of the following statements does not hold true for restriction enzyme?

(a)

It recognizes a palindromic nucleotide sequence

(b)

It is an endonuclease

(c)

It is isolated from viruses

(d)

It produces the same kind of sticky ends in different DNA molecules