List of top Biology Questions asked in NEET (UG)

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?
Given below are two statements: 
Statement I: Mycoplasma can pass through less than 1 micron filter size.
Statement II: Mycoplasma are bacteria with a cell wall.
In the light of the above statements, choose the most appropriate answer from the options given below:

How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:
Detritivores breakdown detritus into smaller particles. This process is called:

Which hormone promotes internode/petiole elongation in deep water rice?

Under normal physical conditions in human beings every 100 ml oxygenated blood can deliver____ml of O2 to the tissues.

Movement and accumulation of ions across a membrane against their concentration gradient can be explained by

Given below are two statements: 
Statement I: The coagulum is formed of a network of threads called thrombins. 
Statement II: Spleen is the graveyard of erythrocytes. 
In the light of the above statements, choose the most appropriate answer from the options given below:
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): All vertebrates are chordates but all chordates are not vertebrates
Reason (R): Notochord is replaced by the vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following is not a connective tissue?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Osteoporosis is characterised by decreased bone mass and increased chances of fracture.
Reason (R): Common cause of osteoporosis is increased levels of oestrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following is a correct match for disease and its symptoms?
Which of the following statements with respect to Endoplasmic Reticulum is incorrect?
Which of the following is present between the adjacent bones of the vertebral column?
Natural selection where more individuals acquire a specific character value other than the mean character value, leads to:
The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?
Which one of the following plants does not show plasticity?

Match list I with list II:

 List - I List - II
(a)Bronchioles(i)Dense Regular Connective Tissue
(b)Goblet Cell(ii)Loose Connective Tissue
(c)Tendons(iii)Glandular Tissue
(d)Adipose Tissue(iv)Ciliated Epithelium
At which stage of life the oogenesis process is initiated?
In situ conservation refers to:
Which of the following is not the function of the conducting part of the respiratory system?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Mendel’s law of Independent assortment does not hold goods for the genes that are located closely on the same chromosome.
Reason (R): Closely located genes assort independently.
Answer from the options given below:
Transposons can be used during which one of the following?
In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because: