List of top Biology Questions asked in NEET (UG)

In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?

Identify the basic amino acid from the following.

Identify the wrong statement with reference to immunity.

The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are :

Meiotic division of the secondary oocyte is complete

Match the following columns and select the correct option.

LIST I Mineral		LIST II  States
A	Placenta	I	Androgens
B	Zona pellucida	II	Human Chorionic Gonadotropin (hCG)
C	Bulbo-urethral	III	Layer of the ovum glands
D	Leydig cells	IV	Lubrication of the Penis

The transverse section of a plant shows following anatomical features: 
(a) Large number of scattered vascular bundles surrounded by bundle sheath. 
(b) Large conspicuous parenchymatous ground tissue. 
(c) Vascular bundles conjoint and closed. 
(d) Phloem parenchyma absent. 
Identify the category of plant and its part

Which of the following statements is not correct?

Match the following :

a	Inhibitor of catalytic activity	i	Ricin
b	Possess peptide bonds	ii	Malonate
c	Cell wall material in fungi	iii	Chitin
d	Secondary metabolite	iv	Collagen

Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.

Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their :

Match the following columns and select the correct option.

	Column I		Column II
a	6- 15 pairs of gill slits	i	Trygon
b	Heterocercal  caudal fin	ii	Cyclostomes
c	Air Bladder	iii	Chondrichthyes
d	Poison sting	iv	Osteichthyes

The QRS complex in a standard ECG represents :

Which of the following statements about inclusion bodies is incorrect ?

Which of the following is put into Anaerobic sludge digester for further sewage treatment?

Which of the following hormone levels will cause release of ovum (ovulation) from the graffian топсІе

Which one of the following is the most abundant protein in the animals ?

Select the option including all sexually transmitted diseases.

If the distance between two consecutive base pairs is 0.34nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately:

Match LIST I with LIST II

Column I		Column II
A	Eosinophils	I	Immune response
B	Basophils	II	Phagocytosis
C	Neutrophils	III	Release histaminase, destructive enzymes
D	Lymphocytes	IV	Release granules containing histamine

Presence of which of the following conditions in urine are indicative of Diabetes Mellitus ? (1) Uremia and Ketonuria (2) Uremia and Renal Calculi (3) Ketonuria and Glycosuria (4) Renal calculi and Hyperglycaemia

Select the correct events that occur during inspiration.
(a) Contraction of diaphragm 
(b) Contraction of external inter - costal muscles 
(c) Pulmonary volume decreases 
(d) Intra pulmonary pressure increases

The sequence that controls the copy number of the linked DNA in the vector, is termed :

Name the enzyme that facilitates opening of DNA helix during transcription.

Montreal protocol was signed in 1987 for control of: