List of practice Questions

Match List-I with List-II and choose the correct answer.

List I		List II
1	Nitrogen rich fertilizers	p	Ozone depletion
2	Carbon dioxide	q	Eutrophication
3	Carbon monoxide	r	Greenhouse effect
4	CFC’s	s	Air pollutant

In tRNA the region that binds with mRNA is

In Structural gene, the template DNA strand has nucleotide sequences
3' ATGCATGCATGCATGC 5'.
Find the correct and complimentary nucleotide sequence on coding strand.

Read the following statements
Statement I : All vertebrates develop a row of vestigial gill slits during embryonic stage.
Statement II : Embryos always pass through the adult stages of other animals.
Which of the following options is correct with reference to these statements.?

Which of the following based upon the principle of antigen-antibody interaction?

A strict protection of biodiversity hotspots could reduce the ongoing mass extinction by almost

According to the hypothesis proposed by environmental biologists, a relatively constant environment in tropics promotes

In the prevention of air pollution, the role of scrubber is to remove

Homeostasis is a condition where the organisms

Which of the following is not a parasitic adaptation?

DNA polymerase of Thermus aquaticus is

If a recombinant DNA bearing gene for resistance to Ampicillin transferred into E.coli cells, host cells become transformed into Ampicillin resistant cells. What happens when these E.coli are grown on medium containing Ampicillin?

Which among the following is used to treat Emphysema?

Which of the following flowers is most likely to be pollinated by birds ?

Anneling process of PCR is performed at ___ temperature

Correct sequence in water absorption by root hairs.

Correct sequence in water absorption by root hairs.

Magnetic Moment of Mn ²⁺ is

Find the time required to complete a reaction 90 %.if the reaction is completed 50% in 15 minutes

IUPAC name of Glyceraldehyde is

IUPAC Name of Acetone is

During double fertilization in angiosperms, which of the following events occurs ?

Which of the following structures is responsible for the production of sperm in the male reproductive system ?

During which phase of its life cycle does the Plasmodium parasite enter the human body when a female Anopheles mosquito bites a human ?

An e.m.f of 5 volt is produced by a self inductance when the current changes at a steady rate from 3A to 2A in 1 millisecond the value of self inductance is