List of top Biology Questions

The mRNA has Untranslated Regions (UTRs):

Which of the following is not a parasitic adaptation?

Which is the intermediate compound that links the end product of Glycolysis with TCA Cycle?

Match the parts of the brain given in List I with their functions given in List II.

List-I (Parts of the brain)		List-II (Functions)
1	Medulla oblongata	p	Body temperature
2	Hypothalamus	q	Olfaction
3	Cerebral cortex	r	Respiration
4	Limbic system	s	Motor function

Choose the correct option from the following :

Following representations P, Q, and R denote few steps of Griffith Experiment. Identify the correct one(s).
P. R strain → Inject into mice → Mice die
Q. S strain (Heat killed) → Inject into mice → Mice die
R. R strain → Inject into mice → Mice live

Which of the following exhibits a haplodiplontic lifecycle?

Which of the following statements is correct with reference to vacuoles?

The term Uremia refers to:

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

DNA polymerase of Thermus aquaticus is:

The sequence of communities of primary succession in water is:
(A) Phytoplanktons → Scrubs → Free floating hydrophytes → Rooted hydrophytes → Grasses → Trees.
(B) Phytoplanktons → Free floating hydrophytes → Rooted hydrophytes → Trees → Scrubs.
(C) Free floating hydrophytes → Scrubs → Phytoplanktons → Rooted hydrophytes → Grasses → Trees.
(D) Phytoplanktons → Rooted hydrophytes → Free floating hydrophytes → Reed swamps → Marsh meadows → Scrubs → Trees.

Identify the bacterial disease among the following:

Hydra reproduces asexually by producing:

Mule is the result of:

Read the following statements:
Statement I: Morphine is obtained by acetylation of Heroin.
Statement II: Cannabinoids are known for their effect on the cardiovascular system.
Which of the following options is correct with reference to these statements?

Auxins : Apical dominance : : Gibberellins : .............

The water potential of pure water is:

The genome of HIV replicates in the macrophages with the help of an enzyme called:

If two primary spermatocytes and two primary oocytes undergo meiosis simultaneously, what will be the ratio of spermatozoa and ova produced at the end of gametogenesis?

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

The typical ’lub-dub’ sounds heard during heartbeat are produced due to:

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

Which of the following hormones is not secreted by human placenta?

Which of the following is based on the principle of antigen-antibody interaction?

In a structural gene, the template DNA strand has nucleotide sequences: 3’ ATGCATGCATGCATGC 5’. Find the correct and complementary nucleotide sequence on the coding strand.