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NEET Biology Model Test-11

NEET Biology Model Test-11

Question No:1
Nearly all of the essential nutrients and _______ percent of electrolytes and water are absorbed by PCT.

[A] 30-40
[B] 99
[C] 70-80
[D] 25

Question No:2
The largely tropical Amazonian rain forest in south America has greatest biodiversity on earth. It is home to more than 40,000 species of plants, 3000 of fishes, 1,300 of birds, ______ of mammals, _______ of amphibians, 378 of reptiles and of more than 1,25,000 invertebrates,

[A] 427,327
[B] 427,427
[C] 472,372
[D] 274,273

Question No:3
The size of each ovary in cm (length)

[A] 2-4
[B] 4-6
[C] 6-8
[D] 8-10

Question No:4
What is the size of Ribosomes?

[A] 15-20nm
[B] 10-1 5 nm
[C] 20-25 nm
[D] 5-lOnrn

Question No:5
How many genes are present in a human cell?

[A] 20,000
[B] 30,000
[C] 50,000
[D] 80,000

Question No:6
At puberty how many primary follicles found in female body

[A] 60,000-80,000
[B] 20,000-40,000
[C] 1,20,000-1,60,000
[D] 30,000-60,000

Question No:7
Select the correct statement from the ones given below with respect to dihybrid cross.

[A] Tightly linked genes on the same chromosome show higher recombinations
[B] Genes far apart on the same chromosome show very few recombinations
[C] Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones :
[D] Tightly linked genes on the same chromosome show very few recombinations

Question No:8
DNA or RNA segment tagged with a radioactive molecule is called

[A] vector
[B] probe
[C] clone
[D] plasmid

Question No:9
Copper centres are present in which complex

[A] complex I
[B] complex II
[C] complex III
[D] complex IV

Question No:10
Vascular bundles in monocotyledons are considered closed because

[A] Xylem is surrounded all around by phloem
[B] There are no vessels with perforations
[C] A bundle sheath surrounds each bundle
[D] There is no secondary growth

Question No:11
In C4-plants, the bundle sheath cells

[A] have thin walls to facilitate gaseous exchange
[B] have large intercellular spaces
[C] are rich in PEP carboxylase
[D] have a high density of chloroplasts

Question No:12
In an annual ring, the light coloured part is known as

[A] early wood
[B] late wood
[C] heartwood
[D] sapwood

Question No:13
The number of autosomes in human primary spermatocyte is

[A] 46
[B] 44
[C] 23
[D] 22

Question No:14
Sphincter of Oddi guards

[A] hepato-pancreatic duct
[B] common bile duct
[C] pancreatic duct
[D] cystic duct

Question No:15
The stage during which, cell decides to get specialized

[A] S-phase
[B] M-phase
[C] G1-phase
[D] G2-phase

Question No:16
Tuberculosis is caused by

[A] Vibrio cholerae
[B] Mycobacterium
[C] Salmonella typhi
[D] None of these

Question No:17
The glenoid cavity is associated with

[A] scapula
[B] humerus
[C] Both (a) and (b)
[D] None of these

Question No:18
Photochemical smog pollution does not contain

[A] ozone
[B] nitrogen dioxide
[C] carbon dioxide

Question No:19
A normal woman whose father was a colour blind person is married to a normal man. Her sons would likely to be

[A] 75% colour-blind
[B] 50% colour-blind
[C] All normal
[D] All colour-blind

Question No:20
In which plant, the fruit is a drupe, seed coat is thin, embryo is inconspicuous and endosperm is edible?

[A] Groundnut
[B] Wheat
[C] Apple
[D] Coconut

Question No:21
Polyploidy can be produced artificially by:

[A] Colchicine
[B] Inbreeding
[C] Line breeding
[D] Self pollination

Question No:22
Which of the following statements is false?

[A] TMV has a double-stranded RNA molecule
[B] Most plant viruses are RNA viruses
[C] The bacteriophage has a double-stranded DNA molecule
[D] Most animal viruses are DNA viruses

Question No:23
Largest single mass of lymphatic tissue in the body is:

[A] Lung
[B] Spleen
[C] Liver
[D] Kidney

Question No:24
Beadle and Tatum showed that each kind of mutant bread mould they studied lacked a specific enzyme. Their experiments demonstrated that:

[A] Cells needs specific enzymes in order to function
[B] Genes are made of DNA
[C] Enzymes are required to repair damage
[D] Genes carry information for making proteins

Question No:25
Which enzyme is responsible for degrading cell wall?

[A] Hexokinase
[B] Amylase
[C] Glukcokinase
[D] Cellulase

Question No:26
Pepsinogen is secreted by:

[A] Chief cell
[B] Oxyntic cell
[C] Mast cell
[D] Parietal cell

Question No:27
Red list in India completed by:

[A] Botanical survey of India
[B] Zoological survey of India
[C] Geological survey of India
[D] None of the above

Question No:28
O2 dissociation curve is:

[A] Sigmoid curve
[B] Parabolic
[C] Hyperbolic
[D] Straight line

Question No:29
Apical dominance is due to:

[A] Auxin
[B] Cytokinin
[C] Ethylene
[D] Gibberellin

Question No:30
Extension of plasma membrane in prokaryotic cell is:

[A] Mesosome
[B] Hapnoid
[C] Ribosome
[D] None of these

Question No:31
Robert made more conservative and scientifically estimate the global species diversity at about _______ million,

[A] 4
[B] 1.5
[C] 20-50
[D] 7

Question No:32
The biogas plant consists of a concrete tank (______ feet deep) in which bio-waste are collected and slurry of dung is fed.

[A] 1-2
[B] 10-15
[C] 30-40
[D] 40-60

Question No:33
At puberty, total number of primary follicle present in human female body

[A] 60,000-80,000
[B] 1,20,000-1,60,000
[C] 30,000-40,000
[D] 15,000-20,000

Question No:34
How many nucleus present in human RBC?

[A] 1
[B] 2
[C] 3
[D] 0

Question No:35
How many genes are present in 1st chromosome of human?

[A] 2968
[B] 2986
[C] 231
[D] 132

Question No:36
Select the correct statement from the following

[A] Biogas is produced by the activity of aerobic bacteria on animal waste
[B] Methanobacterium is an anerobic bacterium found in rumen of cattle
[C] Biogas, commonly called gobar gas, is pure ethane
[D] Activated sludge-sediment in settlement tanks of sewage treatment plant is a right source of aerobic bacteria

Question No:37
Which one of the following statements in regard to the excretion by the human kidneys is correct?

[A] Descending limb of Loop of Henle is impermeable to water
[B] Distal convoluted tubule is incapable of reabsorbing HCO3
[C] Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules
[D] Ascending limb of loop of Henle is impermeable to electrolytes

Question No:38
Darwin’s finches are a good example of

[A] industrial melanism
[B] connecting link
[C] divergent evolution
[D] convergent evolution

Question No:39
Restriction endonucleases are enzymes which

[A] make cuts at specific positions within the DNA molecule
[B] recognize a specific nucleotide sequence for binding of DNA ligase
[C] restrict the action of the enzyme DNA polymerase
[D] remove nucleotides from the ends of the DNA molecule

Question No:40
When there are two haploid nuclei per cell in some fungi before the formation of diploid, this stage is called

[A] diplotene
[B] diplophase
[C] dikaryophase
[D] dikaryote

Question No:41
In root nodules of legumes, leghaemoglobin is important because it

[A] transports oxygen to the root nodule
[B] acts as an oxygen scavenger
[C] provides energy to the nitrogen fixing bacterium
[D] acts as a catalyst in transamination

Question No:42
Natural cytokinins are synthesised in tissue that are

[A] senescent
[B] dividing rapidly
[C] storing food material
[D] differentiating

Question No:43
The most abundant molecule in cell is

[A] Water
[B] Carbohydrate
[C] Lipid
[D] Protein

Question No:44
Graveyard for RBCs is

[A] liver
[B] spleen
[C] kidney
[D] lymph glands

Question No:45
In which of the following wavelength, photo system-I is inactive?

[A] 780 nm
[B] 680 nm
[C] 690 nm
[D] 550 nm