The site of infection for yersinia pestis is___________

(a)

Intestine

(b)

Lungs

(c)

Lymph nodes

(d)

Nervous system

Infection of Ascariasis occur due to ___________________

(a)

Sand fly

(b)

contaminated food

(c)

mosquito bite

(d)

stagnant water

All the following are recombinant vaccines. Except

(a)

Traditional vaccines

(b)

Submit recombinant vaccines

(c)

Attenuated recombinant vaccines

(d)

DNA vaccines

Study the four statements (A to D) given below and select the two correct ones out of them.
A) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers.
B) Predator starfish Pisaster helps in maintaining species diversity of some invertebrates.
C) Predators ultimately lead to the extinction of prey species.
D) Production of chemicals such as nicotine, strychnine by the plants is disordered.
The two correct statements are

(a)

(B) and (C)

(b)

(C) and (D)

(c)

(A) and (D)

(d)

(A) and (B)

Select the proper sequence indicating the increasing order of biodiversity.

(a)

Polar, Temperate and Polar

(b)

Tropics, Temperate and Polar

(c)

Temperate, Tropic and Polar

(d)

Polar, Tropic and Temperate

UN conference on Sustainable development in 2012 was held at_______

(a)

Ruanda

(b)

Rio de Janeiro

(c)

Geneva

(d)

Stockholm

The most common type of ovule noticed in dicots and monocots is

(a)

Orthotropous

(b)

Anatropous

(c)

Campylotropus

(d)

Amphitropous

Examine the figures and name the respective type of ovule.

(a)

A	B	C	D
Campylotropus	Amphitropus	Circinotropus	Anatropus

(b)

A	B	C	D
Anatropus	Hemianatropu	Amphitropus	Campylotropus

(c)

A	B	C	D
Campylotropus	Circinotropus	Hemiamphitropu	Anatropus

(d)

A	B	C	D
Hemiamphitropus	Campylotropus	Amphitropus	Circinotropus

Assertion (A): Codominance is an example of intragenic interaction
Reason (R): Interaction takes place between the alleles of the same gene

(a)

A and R are correct R explains A

(b)

A and R are incorrect

(c)

A is correct R is incorrect

(d)

A is incorrect R is correct

Observe the diagram and name A and B.

(a)

A - Plasmid B - Vector

(b)

A - Nucleoid - B - Plasmid

(c)

A - Bacterial chromosome B - Vector

(d)

A - Nucleoid - B - x phage DNA