NEET NCERT Chapter wise biology questions,solutions,notes,mcqs,PDFs

NEET Biology Model Test-5

NEET Biology Model Test-5

Question No:1
Plant capture only ______ percent of the PAR

[A] 10-15
[B] 2-10
[C] 2-20
[D] >20

Question No:2
A typical angiosperm embryo sac, at maturity, though _____ nucleated is _____ celled

[A] 8, 7
[B] 7, 8
[C] 6,8
[D] 8,8

Question No:3
What is the life span of Crocodile in years?

[A] 10
[B] 20
[C] 60
[D] 30

Question No:4
In Dictyota, how many flagella are present?

[A] 2
[B] 4
[C] 6
[D] 8

Question No:5
Hipopocampus has how many chamber in heart?

[A] 3
[B] 2
[C] 4
[D] 1

Question No:6
Which one of the following cannot be explained on the basis of Mendel’s Law of Dominance?

[A] The discrete unit controlling a particular character is called a factor
[B] Out of one pair of factors one is dominant, and the other recessive
[C] Alleles do not show any blending and both the characters recover as such in F2 generation
[D] Factors occur in pairs

Question No:7
Study the four statements (1-4) given below and select the two correct ones out of them.
(1) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers
(2) Predator star fish Pisaster helps in maintaining species diversity of some invertebrates
(3) Predators ultimately lead to the extinction of prey species
(4) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders
The two correct statements are

[A] (2) and (3)
[B] (3) and (4)
[C] (1)and(4)
[D] (1)and(2)

Question No:8
Which one of the following restriction enzyme can cut TetR site of pBR322

[A] Pvu I, Pst I
[B] BamH I, Sal I
[C] Pvu II
[D] EcoRI

Question No:9
Aldosterone helps in maintenance of

[A] electrolyte
[B] body fluid volume
[C] blood pressure
[D] All

Question No:10
Some of the characteristics of Bt cotton are

[A] long fibre and resistance to aphids
[B] medium yield, long fibre and resistance to beetle pests
[C] high yield and production of toxic protein crystals which kill dipteran pests
[D] high yield and resistance to bollworms

Question No:11
If the total amount of adenine and thymine in a double-stranded DNA is 60%, the amount of guanine in this DNA will be

[A] 15%
[B] 20%
[C] 30%
[D] 40%

Question No:12
The chromosome constitution 2n – 2 of an organism represents

[A] monosomic
[B] nullisomic
[C] haploid
[D] trisomic

Question No:13
Starch graine in pea plant shows

[A] Complete Dominance
[B] Incomplete Dominance
[C] Co-Dominance
[D] Epistasis

Question No:14
Sigmoid growth curve is represented by

[A] dN/dt = rN
[B] dN/dt = rN(l-N/K)
[C] Nt = No + B +1 – D – E
[D] dN/dt = 1 – N/K

Question No:15
PCR proceeds in three distinct steps governed by temperature. They are in order of

[A] denaturation, annealing, synthesis
[B] synthesis, annealing, denaturation
[C] annealing, synthesis, denaturation
[D] denaturation, synthesis, annealing

Question No:16
Which of the following substrate is used in the formation of alcohol?

[A] Sucrose
[B] Glucose
[C] Galactose
[D] Fructose

Question No:17
What will happen, when glucose is administered orally?

[A] Excretion
[B] Digestion
[C] Circulation
[D] Respiration

Question No:18
The substance which is metal ion for the normal functioning of enzyme is called

[A] cofactor
[B] coenzyme
[C] holoenzyme
[D] None of these

Question No:19
Which one of the following is non-biodegradable?

[A] Sewage
[C] Live stock waste
[D] Market garbage

Question No:20
Example of non competitive inhibition

[A] a) G-6-P/Hexokinase
[B] Sulpha drugs and /P- amino benzoic acid,
[C] Cytochrome oxidase/Cyanide
[D] All of these

Question No:21
Potato spindle tuber disease is caused by:

[A] A nematode
[B] A virus
[C] A bacterium
[D] A viroid

Question No:22
Resin and turpentine are products of:

[A] Teak
[B] Oak
[C] Eucalyptus
[D] Pine

Question No:23
Taxonomic hierarchy refers to:

[A] Stepwise arrangement of all categories for classification of plants and animals
[B] A group of senior taxonomists who decide the nomenclature of plants and animals
[C] A list of botanists or zoologists who have worked on taxonomy of a species or group
[D] Classification of a species based on fossil record

Question No:24
Down’s syndrome is due to:

[A] Linkage
[B] Sex-linked inheritance
[C] Crossing over
[D] Non-disjunction of chromosome

Question No:25
Uses of organisms to add essential materials to a degraded ecosystem

[A] Bio-deterioration
[B] Bio-augmentation
[C] Bio-transformation
[D] Bio-magnification

Question No:26
Vital capacity of lung is:

[A] TV + IRV + ERV
[B] TV + IRV + RV
[C] TV + ERV

Question No:27
Corpus luteum secretes

[A] Progesterone and estrogen
[B] LH
[C] Only progesterone
[D] Progesterone and LH

Question No:28
Zn, Mo, Fe, Cu are:

[A] Trace element
[B] Non-essential
[C] Macro nutrient
[D] None of these

Question No:29
Central dogma of genetic information modified by the discovery of:

[A] Reverse transcriptase
[B] DNA polymerase
[C] RNA polymerase
[D] Ligase

Question No:30
Who introduce term homologus

[A] Darwin
[B] Lamarck
[C] Cuvier
[D] Richard owen

Question No:31
How many restriction sites are present in E. Coli. cloning vector pBR322?

[A] 6
[B] 7
[C] 8
[D] 9

Question No:32
Blood normally contain how many (in lacs) platelets per mm?

[A] 1-1.5
[B] 1.5-3.5
[C] 2.0-2.5
[D] 2

Question No:33
How much temperature is provided to cells and recombinant DNA during heat shock?

[A] 22℃
[B] 32℃
[C] 42℃
[D] 72℃

Question No:34
How many external rows of ciliated comb plates present on the body of ctenophores?

[A] 4
[B] 6
[C] 8
[D] 10

Question No:35
GFR is (in m/minute)

[A] 120
[B] 125
[C] 130
[D] 180

Question No:36
Apomictic embryos in Citrus arise from

[A] synergids
[B] maternal sporophytic tissue in ovule
[C] antipodal cells
[D] diploid egg

Question No:37
Seminal plasma in human males is rich in

[A] fructose and calcium
[B] glucose and calcium
[C] DNA and testosterone
[D] Ribose and potassium

Question No:38
Which one of the following statements is correct with respect to Cancer?

[A] The cancer cell have the full ability of contact inhibition
[B] Metastasis is shown by Benign tumors
[C] The cancer causing agents are known as oncogens
[D] c-onc or proto oncogenes when activated can cause cancer

Question No:39
If for some reason our goblet cells are non functional, this will adversely affect

[A] production of rennin
[B] secretion of cerumen
[C] maturation of sperms
[D] smooth movement of food down the intestine

Question No:40
Spring wood differs from autumn wood in

[A] having high density
[B] having dark colour
[C] having less xylary element
[D] having vessel with wider lumen

Question No:41
The protein products of the following Bt toxin genes cry I Ac and cry II Ab are responsible for controlling

[A] bollworm
[B] roundworm
[C] moth
[D] fruit fly

Question No:42
Meristem culture is practised in horticulture to get

[A] somaclonal variation
[B] haploids
[C] virus-free plants
[D] slow-growing callus

Question No:43
ELISA assay

[A] uses complement mediated cell lysis
[B] uses a radio labelled second antibody
[C] involves addition of substrate which is converted into coloured end product
[D] requires red blood cells

Question No:44
Beadle and Tatum showed that each kind of mutant bread mould they studied lacked a specific enzyme. Their experiments demonstrated that

[A] cells need specific enzymes in order to function
[B] genes are made of DNA
[C] genes carry information for making proteins
[D] Enzymes are required to repair damaged DNA information

Question No:45
Corpus luteum releases

[A] oestrogen
[B] progesterone
[C] oestrogen and progesterone
[D] androgen