List of top Questions asked in NEET (UG)- 2020

A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth?

The process of growth is maximum during :

A ray is incident at an angle of incidence $i$ on one surface of a small angle prism(with angle of prism A) and emerges normally from the opposite surface. If the refractive index of the material of the prism is $\mu$. then the angle of incidence is nearly equal to:

Identify compound \(X\) in the following sequence of reactions :

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

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

The specific palindromic sequence which is recognized by EcoRI is:

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

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

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:

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

The enzyme enterokinase helps in conversion of:

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

Identify the basic amino acid from the following.

Select the correct statement.

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 :

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