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 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

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

Match the following columns and select the correct option.

Column I		Column II
A	Floating Ribs	I	Located between second and seventh ribs
B	Acromion	II	Head of the Humerus
C	Scapula	III	Clavicle
D	Glenoid cavity	IV	Do not connect with the sternum

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

The specific palindromic sequence which is recognized by EcoRI is:

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

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

Match the following concerning essential elements and their functions in plants:

a	Iron	i	Photolysis of water
b	Zinc	ii	Pollen germination
c	Boron	iii	Required for chlorophyll biosynthesis
d	Manganese	iv	IAA biosynthesis

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

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

Identify the basic amino acid from the following.

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

Select the correct statement.

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 enzyme enterokinase helps in conversion of:

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

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

Which of the following is correct about viroids?

Which of the following would help in prevention of diuresis ?

Match the following columns and select the correct option.

Column I		Column II
A	Clostridium	I	Cyclosporin-A
B	Trichoderma	II	Butyric Acid
C	Monascus	III	Butyric Acid
D	Aspergillus niger	IV	Blood cholesterol lowering agent

Snow-blindness in Antarctic region is due to :