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19601.

Question : choose the correctly matched pair from the following

Answer»

Gonorrhoea, hepatitis B - SEXUALLY transmitted disease.
AIDS, GONORRHEA - viral INFECTION
DIPHTHERIA, RINGWORM - fungal infection
diphtheria, tuberculosis- protozoan infection.

Answer :A
Discussion
19602.

Question : Choose the correctly matched pair.

Answer»

Amphetamines-Stimulant
LSD-Narcotic
Heroin-Psychotopic
Benzodiazepine-Pain killer

Solution :Amphetamines-Stimulant
Discussion
19603.

Question : Choose the correct term from the bracket: a. Use of animals as experimental materials is discouraged (Biopiracy / Bioethics / Biopatent) b. Single cell protein or SCP (Azolla / Spirulina / Brassica)

Answer»

SOLUTION :a. BIOETHICS
B. SPIRULINA
Discussion
19604.

Question : Choose the correct wrt. Plasmodium

Answer»

MULTICELLULAR organism
A prokaryote
Causes MALARIA in human
Monogenetic parasite

Answer :C
Discussion
19605.

Question : Choose the correct statements among the following - I. Spirulina as single cell protein can serve as food rich in protein. II. Pomalo, new hybrid plant formed by somatic hybridisation is the most successful hybridfor commercial utilisation. III. Iron fortified rice variety has been developed which contain over 5 times as much iron in common varieties. IV. We can use even sewage to produce large quantities of Spirulina

Answer»

I and II are correct, III and IV are wrong
I, III and IV are correct, and II is wrong
I, II and III are wrong, only IV are correct
II and III are correct, I and IV are wrong

SOLUTION :I, III and IV are correct, and II is wrong
Discussion
19606.

Question : (I) The gases that capture heat are called Green House Gases. (II) Burning fossil fuels, releases CO_(2) and CH_(4) (III) Clouds and Dust particles can also produce Green House effect. (IV) Rise in global temperature which causes sea levels to rise as polar ice caps

Answer»

I,II and IV only
I only
I,II,III and IV
II,IIIand IV only

Solution :I,II,III and IV
Discussion
19607.

Question : Choose the correct statements from the following.

Answer»

GAMETES are involved in asenxual reproduction
Bacteria reproduce ASEXUALLY by budding.
Conidia formation is a method of sexual reproduction.
Yeast reproduce by budding.

Answer :A::B::C::D
Discussion
19608.

Question : Choose the correct statement w.r.t. Australopithecus africanus

Answer»

It had a height of about 1.5 meters
Quadrapedal locomotion
Only vegetarian FOOD habit
Raymond DART (1924) DISCOVERED to the fossil from pliocene ROCKS near Tuang in Heidelberg, Germany

Answer :A
Discussion
19609.

Question : Choose the correct statementsA) Uric acid is converted into allantoin by the action of uricase enzyme, in humansB) Most of the ammonia is lost as ammonium ions across the epithelium of gills, in bony fishesC) Trimethylamine oxide protects body proteins from the damaging effect of uric acid in cartilaginous fishes

Answer»

A, B only
B, C only
A, C only
All

ANSWER :B
Discussion
19610.

Question : Choose the correct statement(s) about tenuinucellate ovule

Answer»

Sporogenous CELL is hypodermal
Ovules have FAIRLY large NUCELLUS
Sporogenous cell is epidermal
Ovules have SINGLE layer of nucellus tissue

Answer :A
Discussion
19611.

Question : Choose the correct statement w.r.t. poriferans

Answer»

Gemmule is an asexual reproductive STRUCTURE which develops INSIDE the BODY
Ther are classified into three classes based on symmetry and LOCOMOTORY structures
calcarea and hexactinellida ANIMALS are exclusively marine and are found in deep sea
Demospongiae animals occur exclusively in fresh water

Answer :A
Discussion
19612.

Question : Choose the correct statement w.r.t. geometric growth

Answer»

Can be exemplified by GROWTH pattern of roots
Can't be sustained for long time under natural ENVIRONMENTAL condition
Out of two only a ONE daughter cell divides continuously
Both (1) and (2)

ANSWER :D
Discussion
19613.

Question : Choose the correct statement with reference to 'Dolly'.

Answer»

She was created by TAKING NUCLEUS from unfertilized EGGS and cytoplasm from unfertilized eggs.
She was created by taking nucleus from UDDER cells and cytoplasm from unfertilzed eggs
She ws created by taking cytoplasm from udder cell and nucleus from unfertilized eggs.
She was created by taking cytoplasm from udder cell and nucleus from fertilized eggs.

Answer :B
Discussion
19614.

Question :Choose the correct statement regarding the ZIFT procedure.(A) Ova collected from a female donor are transferred to the fallopian tube to facilitate zygote formation.(B) Zygote is collected from a female donor and transferred to the fallopian tube(C) Zygote is collected from a female donor and transferred to the uterus(D) Ova collected from a female donor and transferred to the uterus

Answer»

Ova collected from a female donor are transferred to the fallopian tube to FACILITATE zygote formation.
Zygote is collected from a female donor and transferred to the fallopian tube
Zygote is collected from a female donor and transferred to the uterus
Ova collected from a female donor and transferrerd to the uterus

Solution : Zygote or 8 celled blastomeres or pre embryo obtained female donor is transferred to fallopian tube. This process is called zygote intra fallopian transfer (ZIFT).
Embryo having 8 BLASTOMERS and having more blastomers is transferred to uterus the process occurring at that TIME is called Intra UTERINE Transfer (IUT).
When ovum obtained from female donor and transferred to fallopian tube of female who cannot produce ovum is called Gamete Intra Fallopian Transfer (GIFT)
Discussion
19615.

Question :Choose the correct statement with reference to 'Dolly'.

Answer»

She was CREATED by TAKING nucleus from unfertilized eggs and CYTOPLASM from unfertilized eggs
She was created by taking nucleus from udder cell andfrom cytoplasm fromunfertilized egg
She was created by taking cytoplasm from udder cell and nucleus from unfertilized egg
She was created by taking nucleus from udder CELLS and unfertilized eggs

Answer :B
Discussion
19616.

Question : Choose the correct statement (s) about tenuinucellate ovule

Answer»

Sprogenous cell is HYPODERMAL
Ovules have fairly large nucellus
sporogenous cell is epidermal
ovules have SINGLE LAYER of nucellus tissue

Answer :A
Discussion
19617.

Question : Choose the correct statement w. r.t. RuBisCO

Answer»

Binding of O_2 and CO_2 at active site is not competitive
Can bindto O_2 and CO_2 with EQUAL affinity
Participate in photo respiration
A in BUNDLE sheath cells

Answer :C
Discussion
19618.

Question : Choosethe correct statement regarding genetic disrders

Answer»


ANSWER :A
Discussion
19619.

Question : Choose thecorrectstatement regardingbiomagnification in anaquaticecosystem.

Answer»

Decrease in CONCENTRATIONOF the TOXICANT in successive tropic levels
Higher cocentrationof toxicantis seenin thefirsttrophic level
Bird POPULATION is leastaffected
Causesdecline in bird population

Answer :D
Discussion
19620.

Question : Choose the correct statement regarding the partial pressures of respiratory gases.

Answer»

`pCO_2` is more than that of `O_2` in atmosphere.
`pCO_2` in oxygenated blood is EQUAL to partial pressure of` O_2` in deoxygenated blood
Solubility of `CO_2` is 20-25 time lesser than`O_2`
`pCO_2` in TISSUES is equal to `O_2` partial pressure in oxygenated blood.

ANSWER :B
Discussion
19621.

Question : Choose the correct statement. Hydra and Adamsia both belongs to same class and exhibit only polyp from Planula larva of Obelia is formed from polyp from planula larva is ciliated and formed from zygote through cleavage In most coelenterates fertilisation is external

Answer»

Only (a)
(a) and (B)
© and (d)
Only (d)

ANSWER :C
Discussion
19622.

Question :Choose the correct statement from the following regarding bacterial Photosynthesis

Answer»

`H_2` is the SOURCE of hydrogen
DARK REACTION occurs in all but not light reaction
All PRODUCE sulphur as by product
All have pigment in chromatophores

Answer :B
Discussion
19623.

Question : Choosethe correct statement from the following

Answer»

Gametes are INVOLVED in ASEXUAL reproduction
Bacteria REPRODUCE asexually by budding
Conidia formation is a method of sexual reproduction
Yeast reproduce by budding

ANSWER :C
Discussion
19624.

Question : choose the correct statement from the following

Answer»

CLEISTOGAMOUS FLOWERS ALWAYS EXHIBIT AUTOGAMY
Chasmogamous flowers always exhibit geitonogamy
Cleistogamous flowers exhibit both autogamy and geitonogamy
Chasmogamy flowers never exhibit autogamy

Answer :A
Discussion
19625.

Question : Choose the correct statement from amongst the following : (A) Dioecious (hermaphrodite) organisms are seen only in animals.(B) Dioecious organisms are seen only in plants(C) Dioecious organisms are seen in both plants and animals.(D) Dioecious organisms are seen only in vertebrates.

Answer»

DIOECIOUS (hermaphrodite) organisms are seen only in ANIMALS.
Dioecuous organisms are seen only in plants
Dioecious organisms are seen in both plants and animals.
Dioecious organisms are seen only in VERTEBRATES.

Solution :Dioecious organisms are seen in both plants e.g. papata and animals e.g COCKROACH.
Discussion
19626.

Question : Choose the correct statement for the fixation of one CO_2 molecule

Answer»

3ATP & 2 NADPH are required through calvin cycle
5 ATP & 2 NADPH are required through Hatch & slack cycle
Photochemical reactionsare involved in photolysis of WATER & phosphorylation of ADP into ATP
all of the above

Answer :D
Discussion
19627.

Question : Choose the correct statement about 'neurohypophysis'.

Answer»

It stores the hormones PRODUCED by adenohypophysis
It is poorly developed and functionless in humans
It stores and RELEASES hormones secreted by hypothalamus
It secretes its own hormones

Answer :C
Discussion
19628.

Question : Choose the correct statement. A. Cotyledons remain inside soil in epigeal type of seed germination. B. Cotyledon comes above the surface in hypogeal type of seed germination. C. Plants growing in saline marshes do not propagate through seeds as surrounding environment do not favours any sort of seed germination.

Answer»

Only B is correct
Only C is correct
Both B and C are incorrect
Both A and B are incorrect

Answer :A
Discussion
19629.

Question : Choose the correct statement :-

Answer»

Osmotic pressure is negative pressure of the SOLUTION
Plasmolysis OCCURS when WATER MOVES inside the cell
The pressure exerted by the PROTOPLAST due to entry of water against the cell wall is pressure potential
If the solute molecules increases in solution then osmotic pressure of solution decreases

Answer :C
Discussion
19630.

Question : choose the correct set of statements (A) successful germination of propagules and its establishment in a bare area is called nudation. (B) succession and evolution would have been parallel processes to have occurred over millions of years scenes life started on earth (C) the flow of energy is uni directional from producer to consumer level.

Answer»

A and B
only A
B and C
A and C

ANSWER :C
Discussion
19631.

Question : Choose the correct series of human evolution :

Answer»

Dryopithecus `RARR` HOMO erectus `rarr` Australopithecus `rarr` Cromagnon man
Australopithecus `rarr` Homo erectus `rarr`Neanderthal `rarr` Homo sapiens
Australopithecus `rarr` RAMAPITHECUS `rarr` Dryopithecus `rarr` Homo sapiens
Homo erectus `rarr` Australopithecus `rarr` Cromagnon `rarr` Neanderthal

Solution :Australopithecus `rarr` Homo erectus `rarr`Neanderthal `rarr` Homo sapiens
Discussion
19632.

Question : Choose the correct sequence of the layers from outer side to inner side in a woody dicot stem :

Answer»

Cork, Cork CAMBIUM, SECONDARY cortex, PRIMARY PHLOEM, Secondary Phloem, Vascular cambium, Secondary xylem, Primary xylem
Cork, Cork cambium, Secondary Xylem, Secondary Phloem, Primary Phloem, Secondary cortex, Vascular cambium, Primary Xylem
Primary Xylem, Secondary xylem, Vascular cambium, Primary phloem, Secondary Phloem, Secondary cortex, Cork cambium, cork
Primary phloem, Secondary Phloem, Secondary Xylem, Primary xylem, Vascular cambium, Secondary cortex, Cork cambium, Cork

Answer :A
Discussion
19633.

Question : Choose the correct sequence of regions according in ascending order of their temperature.

Answer»

Polar areas `to` Temperate areas `to` SUB tropical areas `to` Tropical areas
Equator `to` TIMBER line `to`Tropical deserts
Deep SEA hydrothermal VENTS `to` Tropical deserts `to` mountain top
Polar areas `to` Tropical deserts `to` Mountain top `to` Timber line

Answer :A
Discussion
19634.

Question : Choose the correct sequence of events that occur duing regulation of blood glucose (i)Increase in blood glucose (ii)Increase in circulating glucagone (iii)Release in glucose from glycogen

Answer»

,III,II,i
iii,I,ii
,ii,iii,i
I,ii,iii

Answer :B
Discussion
19635.

Question : Choose the correct sequence of evolution of plants

Answer»

RHYNIA to Psilophyton to Progymnosperm to SEED FEM
Rhynia to Psilophyton to Seed fem to Progymnosperm
Progymnosperm to Rhynia to Psilophyton to seed fem
Progymnosperm to Psilophyton to Rhynia to Seed fem

Answer :A
Discussion
19636.

Question : Choose the correct representation of effect of sewage discharge on important characteristics of a river.

Answer»




ANSWER :A
Discussion
19637.

Question : Choose the correct positioning of Paramecium and Amoeba according to Whittaker system of classification?

Answer»

Bacteria
Protista
Fungi
Monera

Answer :B
Discussion
19638.

Question : Choose the correct pair of the followings:

Answer»

COCONUT , CUCURBITS - dioecious
Honeybee, ROTIFERS - parthenogenesis
Ornithorhyncus, WHALE - viviparity
Frog , PEACOCK - externl fertilisation

Answer :A
Discussion
19639.

Question : Choose the correct pair having same meaning

Answer»

DNA fingerprinting-DNA frofiling
Gene pool-genome
Codon-gene
Cistron-triplet

Answer :A
Discussion
19640.

Question : Choose the correct pair

Answer»

Biopharming - Fermantation
Jelly fish - GFP
Molecular Pharming- INCREASES oxygen
BIOVENTING - DECREASES oxygen

Solution :N/A
Discussion
19641.

Question : Choose the correct pair ,

Answer»

GREEN SULPHUR : CHROMATIUM
Purle sulphur : Rhodocyclus SP.
Non-sulphur : Chlorobacter
Green -sulphur :Chlorobium

ANSWER :D
Discussion
19642.

Question : Choose the correct options :- (I) Transgenic animals that produce useful biological products such as human protein ______A_______used to treat emphysema (II) In 1997, the first transgenic cow, rosie produced human alpha-lactalbumin enriched milk (____B____g/l) (III) Transgenic mice are being used to test the safety of ____C_____. (IV) Transgenic animals are made that carry genes which make them _____D____to toxic substance than non-transgenic animals

Answer»

A - `ALPHA`-1-trypsin, B-2.4, C-POLIO vaccine, D-more resistant
A - `beta`-1-antitrypsin, B-2.8, C-polio vaccine, D - more sensitive
A - `alpha`-1-antirypsin, B-2.4 C, polio vaccine, D- more sensitive
A `alpha`-1-antitrypsin, B-2.8 C, polio vaccine, D- more resistant

ANSWER :C
Discussion
19643.

Question : Choose the correct order of the three layers of human eye from inner layer to outer side

Answer»

1.ScleragtChoroidgtRetina
Retinagtscleragtchoroid
Retinagtchoroidgtsclera
ChoroidgtRetinagtsclera

Answer :C
Discussion
19644.

Question : CHOOSE THE CORRECT PAIR :

Answer»

PROTEIN Bank - Acacia nilotica
Agroforestry - Alibizzia lebbek
Social FORESTRY - Acacia spp.
Deforestation - Gliricidia Sepium

Answer :A::B::C
Discussion
19645.

Question : Choose the correct options:-

Answer»

A-Saccharomyces CEREVISIAE, B-Immuno suppressive agent , C-Heparin, D-gene sliencing
A - Schizosaccharomyces, B-Immuno supressive agent, C-HIRUDIN, D-gene silencing
A-Saccharomyces cerevisiae, B- Clot BUSTER, C- Hirudin D-Gene silencing
A-Saccharomyces cerevisiae, B - immuno suppressive agent, C-Hirudin, D-Gene silencing

ANSWER :D
Discussion
19646.

Question : Choose the correct option w.r.t TMV

Answer»

CAPSOMERES are arranged in POLYHEDRAL form
Possess non-infectious RNA
Beijerinck FOUND that they can PASS through bacteria-proof filters
Crystals consist largely of proteins

Answer :D
Discussion
19647.

Question : Choose the correct option w.r.t. origin of vascular cambium in dicot root.

Answer»

COMPLETELY PRIMARY
Completely secondary
PARTLY primary partly secondary
Cambium is not FORMED at any stage

Answer :B
Discussion
19648.

Question :Choose the correct option w.r.t. root pressure.

Answer»

It is a positive pressure
Develops in the xylary element of TALL trees only
It is OBSERVABLE during day TIME only
Both (2) & (3)

ANSWER :A
Discussion
19649.

Question : Choose the correct option w.r.t. optimum temperature required for photosynthesis

Answer»

WHEAT - 30°Cto 40 °C
rice 30°- 45°C centigrade
Sorghum 20°-25°C
Maize- 30° -45° C

Answer :D
Discussion
19650.

Question : Choose the correct option w.r.t most common nutritional class of bacteria.

Answer»

inorganic (CARBON source) ORGANIC (Electron source)
Organic (Carbon source) Inorganic (Electron source)
Organic (Carbon source) Organic (Electron source)
Inorganic (Carbon source) Inorgnic (Electron source)

ANSWER :C
Discussion