NEET 2022 Biology Questions

Which one of the following never occurs during mitotic cell division?

The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:

Regarding Meiosis, which of the statement(s) is incorrect?

Select the incorrect statement with reference to mitosis:

Match List-I with List-II: List-I (a) Metacentric chromosome (b) Acrocentric chromosome (c) Sub-metacentric chromosome (d) Telocentric chromosome List-II (i) Centromere situated close to the end forming one extremely short and one long arm (ii) Centromere in the middle forming two equal arms (iii) Centromere at terminal end (iv) Centromere slightly away from the middle forming one shorter and one longer arm Choose the correct answer from the options given below:

Given below are two statements: Statement I: Autoimmune disorder is a condition where the body defense mechanism recognizes its own cells as foreign bodies. Statement II: Rheumatoid arthritis is a condition where the body does not attack self cells. In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is present between the adjacent bones of the vertebral column?

Which of the following is a correct match for disease and its symptoms?

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:

The flowers are Zygomorphic in: (a) Mustard (b) Gulmohar (c) Cassia (d) Datura (e) Chilli. Choose the correct answer from the options given below: (NEET 2022)

Which one of the following plants shows vexillary aestivation and diadelphous stamens? (NEET 2022)

Which part of the fruit, labelled in the given figure makes it a false fruit? (NEET 2022)

Identify the correct set of statements: (a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea (b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin (c) Stem is flattened and fleshy on Opuntia and modified to perform the function of leaves (d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration (e) Subaerially growing stems in grasses and strawberry help in vegetative propagation. Choose the correct answer from the options given below: (NEET 2022)

Exoskeleton of arthropods is composed of:

Read the following statements on lipids and find out correct set of statements: (a) Lecithin found in the plasma membrane is a glycolipid (b) Saturated fatty acids possess one or more C=C bonds (c) Gingely oil has lower melting point, hence remains as oil in winter (d) Lipids are generally insoluble in water but soluble in some organic solvents (e) When fatty acid is esterified with glycerol, monoglycerides are formed. Choose the correct answer from the options given below

A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose?

Match List I with List II. Choose the correct answer from the options given below: List I: (a) Glycogen (b) Globulin (c) Steroids (d) Thrombin List II: (i) Hormone (ii) Biocatalyst (iii) Antibody (iv) Storage product

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

Given below are two statements: Statement I : The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells. Statement II : Mesophyll cells of C4 plants lack RuBisCo enzyme. In the light of the above statements, choose the correct answer from the options given below:

What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?

In which of the following animals, does the digestive tract have additional chambers like crop and gizzard?

Exoskeleton of arthropods is composed of:

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 an incorrect statement?

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

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:

The gaseous plant growth regulator is used in plants to:

Which one of the following plants does not show plasticity?

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants?

Which of the following is a correct statement?

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:

Identify the asexual reproductive structure associated with Penicillium:

Which of the following is not a connective tissue?

Match List I with List II. List I (a) Bronchioles (b) Goblet Cell (c) Tendons (d) Adipose Tissue List II (i) Dense Regular Connective Tissue (ii) Loose Connective Tissue (iii) Glandular Tissue (iv) Ciliated Epithelium Choose the correct answer from the options given below:

Which one of the following statements is correct ?

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 :

What amount of energy is released from glucose during lactic acid fermentation?

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

Which of the following is not the function of the conducting part of the respiratory system?

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

Hydrocolloid carrageen is obtained from

Match the plant with the kind of life cycle it exhibits. Choose the correct answer from the options given below: List - I (a) Spirogyra (b) Fern (c) Funaria (d) Cycas List - II (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte (ii) Dominant haploid free-living gametophyte (iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus (iv) Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte

In the taxonomic categories, which hierarchical arrangement (as listed below) is correct in the case of animals? (NEET-2022)

Nitrogenous waste is excreted in the form of pellet or paste by:

Which of the following is an incorrect statement?

Select the incorrect statement regarding synapses :

Which of the following are not the effects of Parathyroid hormone? a. Stimulates the process of bone resorption, b. Decreases Ca2+ level in blood, c. Reabsorption of Ca2+ by renal tubules, d. Decreases the absorption of Ca2+ from digested food, e. Increases metabolism of carbohydrates. Choose the most appropriate answer from the options given below:

The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:

If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?

XO type of sex determination can be found in

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 : Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance. Statement II : Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height. In the light of the above statements, choose the correct answer from the options given below:

Which of the following occurs due to the presence of an autosome linked dominant trait?

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:

The process of translation of mRNA to proteins begins as soon as:

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?

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?

DNA polymorphism forms the basis of:

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of functions to different segment, the methodology adopted by him is called as:

In an E. coli strain the i gene gets mutated and its product can not bind the inducer molecule. If the growth medium is provided with lactose, what will be the outcome?

Which of the following is not a desirable feature of a cloning vector ?

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:

Which one of the following statements is not true regarding gel electrophoresis technique?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Polymerase chain reaction is used in DNA amplification. Reason (R): The ampicillin resistant gene is used as a selectable marker to check transformation. In the light of the above statements, choose the correct answer from the options given below:

In the following palindromic base sequence of DNA, which one can be cut easily by a particular restriction enzyme?

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for: (NEET 2022)

Which one of the following is an example of ex-situ conservation?

Which of the following is not a method of ex situ conservation? (NEET 2022)

In situ conservation refers to:

Given below are two statements: Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells. In the light of the above statements, choose the correct answer: (NEET 2025)

Which part of the fruit, labelled in the given figure makes it a false fruit? (NEET 2022)

Identify the incorrect statement related to Pollination:

Given below are two statements: Statement I : Cleistogamous flowers are invariably autogamous Statement II : Cleistogamy is disadvantageous as there is no chance for cross pollination In the light of the above statements, choose the correct answer from the options given below: (NEET 2022)

Detritivores breakdown detritus into smaller particles. This process is called:

(Out of current syllabus — rationalised out of NCERT; included as it was asked in earlier NEET papers) Which one of the following will accelerate phosphorus cycle?

Given below are two statements: Statement I : Decomposition is a process in which the detritus is degraded into simpler substances by microbes. Statement II: Decomposition is faster if the detritus is rich in lignin and chitin In the light of the above statements, choose the correct answer from the options given below

Which one of the following statements cannot be connected to Predation? (NEET 2022)

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (-) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (-) for another species involved in the interaction? (NEET 2022)

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. (NEET 2022)

Which of the following is a correct statement? (NEET Odisha)

Lippes loop is a type of contraceptive used as:

Match list I with list II with respect to methods of contraception and their respective actions. List I (a) Diaphragms (b) Contraception Pills (c) Intrauterine Devices (d) Lactational Amenorrhea List II (i) Inhibit ovulation and Implantation (ii) Increase phagocytosis of sperm within Uterus (iii) Absences of Menstrual cycle and ovulation following partition (iv) They cover the cervix blocking the entry of sperms Choose the correct answer from the options given below: (NEET 2022)

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis? (a) It results in the formation of haploid gametes (b) Differentiation of gamete occurs after the completion of meiosis (c) Meiosis occurs continuously in a mitotically dividing stem cell population (d) It is controlled by the Luteinizing hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary (e) It is initiated at puberty Choose the most appropriate answer from the options given below: (NEET 2022)

Given below are two statements: Statement I: The release of sperms into the seminiferous tubules is called spermiation. Statement II: Spermiogenesis is the process of formation of sperms from spermatogonia. In the light of the above statements, choose the most appropriate answer from the options given below: (NEET 2022)

At which stage of life the oogenesis process is initiated?

Given below are two statements: Statement I: Autoimmune disorder is a condition where the body defense mechanism recognizes its own cells as foreign bodies. Statement II: Rheumatoid arthritis is a condition where the body does not attack self cells. In the light of the above statements, choose the most appropriate answer from the options given below:

Select the incorrect statement with respect to acquired immunity:

Statements related to human insulin are given below: Which statement(s) is/are correct about genetically engineered Insulin? (a) Pro-hormone insulin contain extra stretch of C-peptide (b) A peptide and B-peptide chains of insulin were produced separately in E. coli, extracted and combined by creating a disulphide bond between them. (c) Insulin used for treating Diabetes was extracted from Cattles and Pigs. (d) Pro-hormone insulin needs to be processed for converting into a mature and functional hormone. (e) Some patients develop allergic reactions to the foreign insulin. Choose the most appropriate answer from the options given below: (NEET 2022)

In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because: (NEET 2022)

Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A:

Natural selection where more individuals acquire a specific character value other than the mean character value, leads to: