List of top Biology Questions asked in NEET (UG)

Which of the following characteristics is incorrect with respect to cockroach ?

Veneral diseases can spread through : (a) Using sterile needles (b) Transfusion of blood from infected person (c) Infected mother to fetus (d) Kissing (e) Inheritance Choose the correct answer from the options given below

For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection

During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first ?

Match the following with respect to meiosis:

	Column I		Column II
A	Bt cotton	I	Gene therapy
B	Adenosine	II	Cellular defence deaminase deficiency
C	RNAi	III	Detection of HIV infection
D	PCR	IV	Bacillus thuringiensis

Identify the correct statement with reference to human digestive system.

The enzyme enterokinase helps in conversion of:

Match the following columns and select the correct option.

Column I		Column II
A	Pituitary gland	I	Grave's disease
B	Thyroid gland	II	Diabetes mellitus
C	Adrenal gland	III	Diabetes insipidus
D	Pancreas	IV	Addison's disease

Identify the substances having glycosidic bond and peptide bond, respectively in their structure :

The specific palindromic sequence which is recognized by EcoRI is:

Select the correct statement.

In light reaction, plastoquinone facilitates the transfer of electrons from:

Match the trophic levels with their correct species examples in grassland ecosystem.

	Column I		Column II
A	Fourth trophic level	I	Crow
B	Second trophic level	II	Vulture
C	First trophic level	III	Rabbit
D	Third tropical level Third tropical level	IV	Grass

Match the following columns and select the correct option.

	Column I		Column II
A	Organ of Corti	I	Connects middle ear and pharynx
B	Cochlea	II	Coiled part of the labyrinth
C	Eustachian tube	III	Attached to the oval window
D	Stapes oval window	IV	Located on the basilar membrane

Snow-blindness in Antarctic region is due to :

Which of the following would help in prevention of diuresis ?

Identify the wrong statement with regard to Restriction Enzymes.

Which of the following is correct about viroids?

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

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

Identify the basic amino acid from the following.

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

In gel electrophoresis, separated DNA fragments can be visualized with the help of :

Which of the following statements about inclusion bodies is incorrect ?