List of top Questions asked in NEET (UG)- 2021

Which of the following molecules is non-polar in nature?
In the equation $GPP - R = NPP\,\,\, R$ represents :
The total capacity of the system of capacitors shown in the adjoining figure between the points A and B is
Total capacity of the system of capacitors
Which of the following plants is monoecious?
If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it ?
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 foetus (d) Kissing (e) Inheritance Choose the correct answer from the options given below.
Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology $(MOET)$?
The electron concentration in an $n$-type semiconductor is the same as hole concentration in a $p$-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
A thick current carrying cable of radius $'R'$ carries current $'I'$ uniformly distributed across its cross-section. The variation of magnetic field $B ( r )$ due to the cable with the distance $'r'$ from the axis of the cable is represented by :

A typical angiosperm embryo sac at maturity is

Which of the following statements is not correct?

Match List - I with List - II. 

List - I

List - II

(a)Protoplast fusion(i)Totipotency
(b)Plant tissue culture(ii)Pomato
(c)Meristem culture(iii)Somaclones
(d)Micropropagation(iv)Virus-free plants

 

Choose the correct answer from the options given below

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as

Mutations in plant cells can be induced by

The first stable product of CO2 fixation in sorghum is

When gene targetting involving gene amplification is attempted in an individual’s tissue to treat disease, it is known as :

Which of the following are not secondary metabolites in plants?

Match List - I with List - II.

List - I

List - II 

(a)Cells with active cell division capacity (i)Vascular tissues
(b)Tissue having all cells similar in structure and function (ii)Meristematic tissue
(c)Tissue having different types of cells(iii)Sclereids
(d)Dead cells with highly thickened walls and narrow lumen(iv)Simple tissue

Select the correct answer from the options given below

In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

The production of gametes by the parents, the formation of zygotes, and the F1 and F2 plants, can be understood from a diagram called :

Complete the flow chart on central dogma.

central dogma

Plants follow different pathways in response to the environment or life phases to form different structures. This ability is called : 

Which of the following is not an application of PCR (Polymerase Chain Reaction)?

Which of the following algae contains mannitol as reserve food material