List of top Biology Questions

The principle of vaccination is based on which property of the immune system?

The process in which a small part of the vas deferens is removed or tied up through a small incision, is called:

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

Match the nutrients given in List-I with the source in List-II:

List-I		List-II
1	Vitamin A	p	Bitter gourd
2	Single cell protein	q	Beans
3	Vitamin C	r	Carrots
4	Protein	s	Spirulina spp

Choose the correct option from the following :

Identify the bacterial disease among the following:

Select the correct statement from the following:

Match the pigments given in List I with their colour in chromatogram given in List II.

List-I (Pigments)		List-II (Colour in chromatogram)
1	Chlorophyll 'b'	p	Yellow orange
2	Carotenoids	q	Orange red
3	Chlorophyll 'a'	r	Yellow
4	Xanthophylls	s	Blue green
		t	Yellow green

Choose the correct option from the following :

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?

Which of the following exhibits a haplodiplontic lifecycle?

Match the type of adaptation given in List-I with their examples given in List-II. Select the option showing correct combination

List-I (Types of adaptation)		List-II (Examples)
1	Biochemical adaptation	p	Desert lizards
2	Behavioural adaptation	q	Deep sea fishes
3	Physiological adaptation	r	Opuntia
4	Morphological adaptation	s	Kangaroo rats

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

Ciliated epithelial cells are present in:

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.

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

In human females, the endometrium of the uterus consists of:

Which among the following is used to treat Emphysema?

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

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

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:

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

The role of Filiform apparatus in synergids is to:

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

Match the content of List I with List II:

List-I		List-II
1	Polyembryony	p	Black pepper
2	Perisperm	q	Banana
3	False fruit	r	Lemon
4	Parthenocarpy	s	Apple

Choose the correct option from the following :

Identify the incorrect match with respect to recently extinct animals and their place of extinction according to the IUCN Red List:

Which of these enzymes is required to cleave a plasmid?