List of top Biology Questions asked in NEET (UG)

Match List I with List II. 
 

List I

 

List II

ALogistic growthIUnlimited resource availability condition 
BExponential growth IILimited resource availability condition
CExpanding age pyramid IIIThe percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups
DStable age pyramidIVThe percent individuals of pre-reproductives and reproductive age group are same
Choose the correct answer from the options given below:

Given below are two statements:
Statement I: During G0 phase of cell cycle, the cell is metabolically inactive.
Statement II: The centrosome undergoes duplication during S phase of interphase.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following statements are correct regarding skeletal muscle?
  1. Muscle bundles are held together by collagenous connective tissue layer called fascicle.
  2. Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
  3. Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins.
  4. M line is considered as functional unit of contraction called sarcomere.
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: ATP is used at two steps in glycolysis. 
Reason R: First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate.
In the light of the above statements, choose the correct answer from the options given below:

Match List I with List II. 

 

List I

 

List II

AMast cellsICiliated epithelium
BInner surfaceIIAreolar connective tissue Of bronchiole
CBloodIIICuboidal epithelium
DTubular parts IVSpecialised connective tissue of nephron

Choose the correct answer from the options give below:

In cockroach, excretion is brought about by
A. Phallic gland
B. Uricose gland
C. Nephrocytes
D. Fat body
E. Collaterial glands

Which of the following statements are correct about Klinefelter’s Syndrome? 

A. This disorder was first described by Langdon Down (1866). 
B. Such an individual has overall masculine development. However, the feminine development is also expressed. 
C. The affected individual is short statured. 
D. Physical, psychomotor and metal development is retarded. E. Such individuals are sterile. 

Choose the correct answer from the options given below:

Which of the following statements is not true?
Select the incorrect statement regarding synapses:
Which one of the following statements is correct?

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
Which of the following is not a desirable feature of a cloning vector?
Ten E. coli cells with 15N- dsDNA are incubated in a medium containing 14N nucleotides. After 60 minutes, how many E. coli cells will have DNA totally free from 15N?
Select the incorrect statement with respect to acquired immunity:

Which of the following are not the effects of Parathyroid hormone?

  1. Stimulates the process of bone resorption,
  2. Decreases Ca2+ level in blood,
  3. Reabsorption of Ca2+ by renal tubules,
  4. Decreases the absorption of Ca2+ from digested food,
  5. Increases metabolism of carbohydrates.

Choose the most appropriate answer from the options given below

Match list I with list II with respect to methods of contraception and their respective actions. Choose the correct answer from the options given below:

 List - I List - II
(a)Diaphragms(i)Inhibit ovulation and Implantation
(b)Contraception(ii)Increase phagocytosis of sperm within Pills Uterus
(c)Intrauterine Devices(iii)Absences of Menstrual cycle and ovulation following partition
(d)Lactational Amenorrhea(iv)They cover the cervix blocking the entry of sperms

Match list I with list II. Choose the correct answer from the options given below:

 List - I List - II
(a)Glycogen(i)Hormone
(b)Globulin(ii)Biocatalyst
(c)Steroids(iii)Antibody
(d)Thrombin(iv)Storage product
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?
Given below are two statements:
Statement I: In a scrubber, exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II: Particular matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.
In the light of the above statements, choose the most appropriate answer from the options given below: 

Statements related to human insulin are given below: Which statement(s) is/are correct about genetically engineered Insulin?

  1. Pro-hormone insulin contain extra stretch of C-peptide
  2. A peptide and B-peptide chains of insulin were produced separately in E. coli, extracted and combined by creating a disulphide bond between them.
  3. Insulin used for treating Diabetes was extracted from Cattles and Pigs.
  4. Pro-hormone insulin needs to be processed for converting into a mature and functional hormone.
  5. Some patients develop allergic reactions to the foreign insulin.

Choose the most appropriate answer from the options given below:

Which of the following is a correct statement?
Given below are two statements:
Statement I: Restriction endonucleases recognise specific sequences to cut DNA known as palindromic nucleotide sequences.
Statement II: Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.
In the light of the above statements, choose the most appropriate answer from the options given below: 
If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week, the death rate in the population is__ individuals per Drosophila per week.
Which of the following functions is not performed by secretions from salivary glands?
Lippes loop is a type of contraceptive used as: