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

The specific palindromic sequence which is recognized by EcoRI is:

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

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 enzyme that facilitates opening of DNA helix during transcription.

Which of the following statements is not correct?

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

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

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

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

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells ?

Select the option including all sexually transmitted diseases.

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

Identify the correct statement with reference to human digestive system.

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 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

Which of the following statements about inclusion bodies is incorrect ?

The enzyme enterokinase helps in conversion of:

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

Which of the following statements is correct?

Montreal protocol was signed in 1987 for control of:

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 first phase of translation is:

The size of Pleuropneumonia - like Organism (PPLO) is :

Match the following columns and select the correct option.