NEET 2016 Biology Questions

Which one of the following statements is wrong?

Select the wrong statement :

Select the wrong statement

Methanogens belong to

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:

Which of the following statements about methanogens is not correct?

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom:

Select the wrong statement.

Which one of the following is wrong for fungi?

One of the major components of cell wall of most fungi is:

Which of the following would appear as the pioneer organisms on bare rocks?

Which of the following statements is wrong for viroids?

The standard petal of papilionaceous corolla is also called: (NEET 2016 (Phase I))

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers? (NEET 2016 (Phase II))

Radial symmetry is found in the flowers of (NEET 2016 (Phase II))

Proximal end of the filament of stamen is attached to the: (NEET 2016 (Phase I))

Stems modified into flat green organs performing the functions of leaves are known as: (NEET 2016 (Phase I))

Free-central placentation is found in (NEET 2016 (Phase II))

Cotyledon of maize grain is called: (NEET 2016 (Phase I))

The term 'polyadelphous' is related to (NEET 2016 (Phase II))

Which of the following is not a stem modification? (NEET 2016 (Phase I))

Tricarpellary, syncarpous gynoecium is found in flowers of: (NEET 2016 (Phase I))

Which hormones do stimulate the production of pancreatic juice and bicarbonate?

Graves' disease is caused due to

The posterior pituitary gland is not a 'true' endocrine gland because

The two polypeptides of human insulin are linked together by:

Select the incorrect statement:

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.

Osteoporosis, an age-related disease of skeletal system, may occur due to

Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?

Changes in GnRH pulse frequency in females is controlled by circulating levels of:

Identify the correct statement on 'inhibin':

Which of the following is not a feature of the plasmids?

Select the wrong statement

A cell organelle containing hydrolytic enzymes is

Mitochondria and chloroplast are: (i) Semi – autonomous organelles (ii) Formed by division of pre – existing organelles and they contain DNA but lack protein synthesizing machinery Which one of the following options is correct?

Spindle fibres attach on to:

Microtubules are the constituents of:

Which one of the following cell organelles is enclosed by a single membrane?

Which of the following statements is not correct?

Water soluble pigments found in plant cell vacuoles are:

Match the stages of meiosis of Column-I to their characteristic features in Column-II and select the correct option using the codes given below: Column-I a. Pachytene b. Metaphase I c. Diakinesis d. Zygotene Column-II (i) Pairing of homologous chromosomes (ii) Terminalization of chiasmata (iii) Crossing-over takes place (iv) Chromosomes align at equatorial plate

Spindle fibres attach on to:

During cell growth, DNA synthesis takes place in

In meiosis crossing over is initiated at:

Which of the following is not a characteristic feature during mitosis in somatic cells?

When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?

A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:

The partial pressure of oxygen in the alveoli of the lungs is

Select the correct statement.

Reduction in pH of blood will:

Asthma may be attributed to:

Name the chronic respiratory disorder caused mainly by cigarette smoking:

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because

Which of the following describes the given graph correctly? (Graph shows reaction-coordinate / potential-energy profile with activation energies labelled 'A' and 'B'.)

A typical fat molecule is made up of:

The two polypeptides of human insulin are linked together by:

Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?

A non – proteinaceous enzyme is

Which one of the following statements is wrong?

Which one of the following statements is wrong?

Which of the following is incorrectly matched?

Which of the following statements is true?

Conifers are adapted to tolerate extreme environmental conditions because of

Select the correct statement:

In bryophytes and pteridophytes, transport of male gametes requires:

Which one of the following characteristics is not shared by birds and mammals?

Which of the following features is not present in Periplaneta americana?

Which of the following characteristic features always holds true for the corresponding group of animals? Each option pairs a characteristic feature with an animal group. (a) Cartilaginous endoskeleton - Chondrichthyes (b) Viviparous - Mammalia (c) Possess a mouth with an upper and a lower jaw - Chordata (d) 3-chambered heart with one incompletely divided ventricle - Reptilia Choose the pairing that is always correct.

Choose the correct statement. (a) All mammals are viviparous (b) All cyclostomes do not possess jaws and paired fins (c) All reptiles have a three-chambered heart (d) All pisces have gills covered by an operculum

Which of the following features is not present in the Phylum Arthropoda?

In a chloroplast the highest number of protons are found in:

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

Emerson's enhancement effect and Red drop have been instrumental in the discovery of:

The process which makes major difference between C3 and C4 plants is

Osteoporosis, an age-related disease of skeletal system, may occur due to

Lack of relaxation between successive stimuli in sustained muscle contraction is known as:

Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

Smooth muscles are

Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature? (NEET-2016 Phase-1)

Match Column-I with Column-II for housefly classification and select the correct option using the codes given below: Column - I A. Family B. Order C. Class D. Phylum Column - II (i) Diptera (ii) Arthropoda (iii) Muscidae (iv) Insecta Choose the correct option: (NEET-2016 Phase-2)

Study the four statements (A–D) given below and select the two correct ones out of them: A. Definition of biological species was given by Ernst Mayr. B. Photoperiod does not affect reproduction in plants. C. Binomial nomenclature system was given by R.H. Whittaker. D. In unicellular organisms, reproduction is synonymous with growth. The two correct statements are: (NEET-2016 Phase-2)

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?

The avena curvature is used for bioassay of:

Which of the following statements is not correct?

Blood pressure in the pulmonary artery is:

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

Serum differs from blood in

Specialized epidermal cells surrounding the guard cells are called:

Cortex is the region found between

Which type of tissue correctly matches with its location?

Smooth muscles are

Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?

Oxidative phosphorylation is

The part of nephron involved in active reabsorption of sodium is

Which of the following statements is not correct?

Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria?

Which of the following statements about the lac-operon is correct?

The correct statement regarding RNA and DNA, respectively is:

Which one of the following is the starter codon?

A molecule that can act as a genetic material must fulfill the traits given below, except

Which one of the following statements about Histones is wrong?

Which of the following is not required for any of the techniques of DNA fingerprinting available at present?

The equivalent of a structural gene is

DNA-dependent RNA polymerase catalyzes transcription on one strand of the DNA which is called the

A complex of ribosomes attached to single strand of RNA is known as:

Taylor conducted the experiments to prove semiconservative mode of chromosome replication on

Which of the following is required as inducer(s) for the expression of Lac operon?

If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is

In a testcross involving F1 dihybrid flies, more parental – type offspring were produced than the recombinant – type offspring. This indicates:

Pick out the correct statements: (i) Hemophilia is a sex – linked recessive disease (ii) Down's syndrome is due to aneuploidy (iii) Phenylketonuria is an autosomal recessive gene disorder (iv) Sickle cell anaemia is an autosomal recessive gene disorder

A true breeding plant is

The mechanism that causes a gene to move from one linkage group to another is called

Which of the following most appropriately describes hemophilia?

Match the following: Column – I (a) Dominance (b) Codominance (c) Pleiotropy (d) Polygenic inheritance Column – II (i) Many genes govern a single character (ii) In a heterozygous organism only one allele expresses itself (iii) In a heterozygous organism both alleles express themselves fully (iv) A single gene influences many characters

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed the resulting genotypes were in the ratio

A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:

Which of the following structures is homologous to the wing of a bird?

Genetic drift operates in

Which of the following statements is not true ?

Which of the following is the correct sequence of events in the origin of life? (i) Formation of protobionts (ii) Synthesis of organic monomers (iii) Synthesis of organic polymers (iv) Formation of DNA-based genetic systems

In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by

Following are the two statements regarding the origin of life: (i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct?

The chronological order of human evolution from early to the recent is

Analogous structures are a result of:

The taq polymerase enzyme is obtained from:

Stirred-tank bioreactors have been designed for

Which of the following restriction enzymes produces blunt ends?

Which of the following is not a component of downstream processing?

Which of the following is not a feature of the plasmids?

A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using

Which of the following is a restriction endonuclease?

Seed formation without fertilization in flowering plants involves the process of:

The ovule of an angiosperm is technically equivalent to

Cotyledon of maize grain is called:

The coconut water from tender coconut represents:

In majority of angiosperms

Proximal end of the filament of stamen is attached to the:

Pollination in water hyacinth and water lily is brought about by the agency of (NEET 2016 Phase-2)

Match Column-I with Column-II and select the correct option using the codes given below: Column-I a. Citric acid b. Cyclosporin A c. Statins d. Butyric acid Column-II (i) Trichoderma (ii) Clostridium (iii) Aspergillus (iv) Monascus Choose the correct option.

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

A river with an inflow of domestic sewage rich in organic waste may result in:

Which of the following is wrongly matched in the given table (Microbe – Product – Application)?

Which of the following statements about methanogens is not correct?

Asthma may be attributed to:

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to:

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain:

Which of the following statements is not true for cancer cells in relation to mutations?

Which of the following sets of diseases is caused by bacteria?

Which of the following is correct regarding AIDS causative agent HIV?

Embryo with more than 16 blastomeres formed due to in-vitro fertilization is transferred into (NEET 2016 Phase-2)

Which of the following is hormone releasing IUD?

Which of the following approaches does not give the defined action of contraceptive? (a) Barrier methods – Prevent fertilization (b) Intra uterine devices – Increase phagocytosis of sperms, suppress sperm motility and fertilizing capacity of sperms (c) Hormonal contraceptives – Prevent / retard entry of sperms, prevent ovulation and fertilization (d) Vasectomy – Prevents spermatogenesis Choose the correct answer: (NEET 2016)

In context of Amniocentesis, which of the following statement is incorrect?

Which of the following is incorrect regarding vasectomy?

Which of the following is correct regarding AIDS causative agent HIV? (NEET 2016 Phase-2)

Identify the correct statement on 'inhibin':

Fertilization in humans is practically feasible only if:

Several hormones like hCG, hPL, estrogen, progesterone are produced by

Which of the following depicts the correct pathway of transport of sperms? (NEET 2016 Phase-2)

Match Column-I with Column-II and select the correct option using the codes given below: Column - I a. Mons pubis b. Antrum c. Trophectoderm d. Nebenkern Column - II (i) Embryo formation (ii) Antrum (iii) Female external genitalia (iv) Graafian follicle (NEET 2016 Phase-2)

Select the incorrect statement:

When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1 − N/K): (NEET 2016 (Phase 1))

Gause's principle of competitive exclusion states that: (NEET 2016 (Phase 1))

Which of the following is correct for r-selected species? (NEET 2016 (Phase 2))

If '+' sign is assigned to beneficial interaction, '–' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '–' refers to (NEET 2016 (Phase 2))

The principle of competitive exclusion was stated by (NEET 2016 (Phase 2))

How many hot spots of biodiversity in the world have been identified till date by Norman Myers? (NEET 2016 Phase-2)

Red list contains data or information on

Which of the following is correctly matched?

Which of the following is the most important cause of animals and plants being driven to extinction?

Which of the following is the most important cause for animals and plants being driven to extinction?

Which part of the tobacco plant is infected by Meloidogyne incognita?

Which of the following statements is not correct?

The two polypeptides of human insulin are linked together by:

Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency? (NEET 2016 (Phase 2))

The term ecosystem was coined by:

(Out of current syllabus — rationalised out of NCERT; included as it was asked in earlier NEET papers) Which of the following would appear as the pioneer organisms on bare rocks?

Which of the following statements is not correct?