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(i) and (ii)
(ii) and (iii)
(i) and (iv)
(i),(ii) and (iii)

INCREASE in atrial PRESSURE causes the CLOSURE of atrioventricular valves
Upon RECEIVING stimulation from SA node, atria and ventricles contract simultaneously
Major FILLING of ventricles occurs during atrial systole
Fall in ventricular pressure during ventricular diastole causes closure of semilunar valves

Rate of photosynthesis decreases with increase in `CO_(2)` conc. upto 0.50%
Green HOUSE crops (`C_(3)` plants) SHOW `CO_(2)` fertilization effect
Atmospheric `CO_(2)` is rarely limiting factor for `C_(3)` plants
High conc. of `CO_(2)`in `C_(3)` plants causes photorespiration

CYCLIC photophosphorylation INVOLVES PHOTOLYSIS of water
Cyclic photophosphorylation occurs in granal the lakoid
External ELECTRON doner is REQUIRED in cyclic photophosphorylation
Only PS-I is involved in cyclic photophosphorylation

a, B, C, d
a, c, d
a, c, d, e
b, d, e

Opium is DRIED latex obtained from the UNRIPE capsular fruits of plant A.
The DRUG obtained from plant B is a powerful CNS stimulatn, which increases a PERSON's mental alertness and physical activity.
Plant C belongs to Family Moracease , bhang ganja, charas and marijuana are the hallucinogenic products obtained from this plant.
All of these

There is NEITHER synthesis of SUGAR nor ATP
It results in the release of CO_2 WITHOUT utilisation of ATP
there is no synthesis of ATP but the synthesis of NADPH OCCURS
it occurs in plants which have Kranz anatomy

Failure of neuromuscular transmission in inyasthenia gravis can prevent normal swallowing
Accumulation of UREA and creatine in the JOINTS causes their inflammation.
An overdose of vitamin D causes OSTEOPOROSIS.
RAPID contractions of skeletal muscles cause MUSCLE dystrophy.

The vertebral column hus 10 THORACIC vertebrae
The JOINT between ADJACENT vertebrae is a fibrous joint
A decreased level of progesterone causes OSTEOPOROSIS in old people
Accumulation of uric acid crystals in joints causes their inflammation

Sedimentation is preceeded by sequential filtration
BOD of waste WATER is INVERSELY proportional to its pollution potential
Secondary treatment is a PHYSICO chemical process
Biological treatment is PERFORMED on primary effluent

RQ DEPENDS upon respiratory SUBSTRATE
R.Q. is less than ONE in case or organic acids
R.Q. is always more than one in case of carbohydrate
R.Q. is 0.7 in succulent PLANTS

it has butterfly shaped gray matter which is present outside white matter
It EXTENDS from medulla oblongata UPTO last coccygeal vertebra
Its white matter CONSISTS CHIEFLY of long, myelinated nerve fibers
Dorsal ROOT ganglia contain cell bodies of motor neurons

Both gills and lungs are respiratory structures PRESENT in all molluscs
Blood LACKS respiratory pigment
Nautilus is a connecting link between ANNELIDS and molluscs
Cephalopods have closed CIRCULATORY system

Initial phase involves slow uptake of ions
Metabolic phase involves RAPID uptake of ions
Initial phase involves active absorption with expenditure of ATP
Metabolic phase AMY involve PASSIVE or active absorption

It is a cyclical, zero waste procedure where waste products from one process are cycled in as nutrients for other processes.
In this process, industrial WASTES is used to manufacture product such as polyblend.
In this process, CHEMICAL fertilisers are used to increase yield.
both (a) and (c )

Most of its species are dioecious
Its SEX organs are NON jacketed
Globule is its male sex organ
It is a photosynthetic andthalloid bryophyte

Entire lactic ACID is converted into GLUCOSE in muscles
About 1/5th of lactic acid is oxidised to CO, and water
Oxidative BREAKDOWN of glucose in muscles produces lactic acid
Both (1) & (3)

It does not REQUIRE the use of chemical fertilisers
It is completely resistant to all insect pests and diseases
It gives HIGH yield but no characteristicaroma
It gives high YEILD and is rich in vitamin A

Gain of ADDITIONAL chromosome is called aneuploidy.
The affected INDIVIDUAL of Turner's and Klinfelter's syndrome of fertile.
Increase in the WHOLE set of chromosome in an ORGANISM is called polyploidy.
Expected `F_2`generation ratio of two genes which do not segregate independently is 9:3:3:1

Electrostatic precipitators (ESPs) can REMOVE over 99 % particulate matter present in the exhaust from a thermal power plant.
Over half of the e-wastes generated in developed countries are EXPORTED to developing countries, mainluy to China, India and Pakistan, where METALS like Cu, Fe, Si Ni, etc., are recovered during recycling process.
Use of nuclear energy has two very serious inherent problems first is accidental leakage and the second is SAFE disposal of radioactive wastes.
All of these.

Tightly linked genes on the same chromosome SHOW HIGHER recombinations
Genes far APART on the same chromosome show very few recombinations
Genes loosely linked on the same chromosome show SIMILAR recombinations as the tightly linked ones
Tightly linked genes on the same chromosome show very few recombinations

SLOW and ELABORATE process
It can be both uniparental as well as biparental
INVOLVES syngamy
More than one option is correct

Tightly LINKED genes on the same CHROMOSOMES show very few combinations
Tightly linked genes on the same chromosomes show higher combinations
Genes FAR apart on the same chromosomes show very few recombinations
Genes LOOSELY linked on the same chromosomes show SIMILAR recombinations as the tightly linked ones

Barbiturates when GIVEN to criminals make them tell the truth
Morphine is often given to persons who have undergone surgery as a pain killer
Chewing TOBACCO LOWERS blood pressure and HEART rate
Cocaine is given to patients after surgery as it stimulates recovery

Big Bang theory ATTEMPTS to explain US the origin of LIFE
Earth was supposed to be formed 3 billion years back
Life appeared 500 million years after the formation of earth
Formation of life on earth was succeeded by chemical evolution

Mutations are random and directional
Darwinian variations are SMALL and directionless
Fitness is the end RESULT of the ability to adapt and get SELECTED by nature
All mammals except WHALES and camels have seven CERVICAL vertebrae

Nissi's granules are found in CELL body and dendrities
Axonal MEMBRANE is more permeable to `NA^(+)` at resting state.
The AUTONOMIC NERVOUS system transmits impulses from the CNS to the voluntary muscules and organs of the body
Typical neurous in PNS are non myelinated

Hydrolase enzymes catalyse the LINKING of two compounds
Ligase ENZYME is RESPONSIBLEFOR removal of a group from substrate
Transferase enzymes catalyse the TRANSFER of all groups including hydrogen.
Dehydrogenase enyzmes catalyse the redox reactions

Methanobacterium is an aerobic bacterium found in RUMEN of cattle
Biogas, commonly CALLED GOBAR gas, is pure methane
Activated sludge-sediment in SETTLEMENT tanks of sewage treatment plant is a rich source of aerobic bacteria
Biogas is produced by the ACTIVITY of aerobic bacteria on animal waste

Sexual reproduction occurs through gametangial COPULATION and spermatization
Form non-motile mitospores called aplanospores present inside the sporangia
Azygospore is SITE of MEIOSIS and gives RISE to germ sporangium
Failure of fusion of gametangia results in the formation of parthenogenetically produces zoospore

PUNNETT SQUARE was developed by a BRITISH specialist
splicessomes take PART in TRANSLATION.
Transduction was discovered by S. Altman

The shoot axis SHOWS definite growth
FLOWERS are borne in basipetal succession
Flowers are borne in ACROPETAL succession
Older flowers are present towards the APEX and younger flowers are present at the base

Gross primary productivity is the available biomass for the consumption to heterotrophs.
Secondary productivity depends on the photosynthetic capacity of the PLANT SPECIES inhabiting a particular area.
Productivity is expressed in terms of `kg^(-2)yr^(-1)` or `(KCAL m^(-2))yr^(-1)` to compare the productivity of different ECOSYSTEMS.
Of an approximate NPP of 170 BILLION tonnes, the productivity of the oceans are only 55 billion tons despite accupying 70% of the earth.

RNAi strategy was taken up to prevent the infestation of nematodes in the roots maize plants.
This METHOD involves the use of a complementary dsRNA MOLECULE that binds to ans prevents translation of the mRNA
Only RNA genomes of viruses can be used as a source for the complementary RNA
Mobile genetic ELELMENTS called transposonscan replicate only through a DNA intermediate

The structural GENE in a transcription unit in BACTERIA could be said as polycistronic
In bacteria , the structural gene has mRNA that can encode more than ONE polypeptide separately with in could be said as monocistronic
All of the above

Large scale planting of Bt cotton has no ADVERSE EFFECT on biodiversity.
Western Ghats have a very high DEGREE of species richness and ENDEMISM.
Conservation of biodiversity is just a fad pursued by the developed countries.
The desert areas of Rajasthan and Gujarat have a very high LEVEL of desert animal species as well as numerous rare animals.

More than 7% energy is generated
yeast poison themselves to death when CONCENTRATION of alcohol reaches about 30%
Net gain is 2ATP
`CO_(2)` is PRODUCED in both types of fermentation

In syncarpous condition one CARPEL is present
The number of locules are always EQUAL to number of carpels in GYNOECIUM
Free central placentation is found in primrose
Arrangement of ovaries is called placentation

`{:(A,B,C,D),("Ureter","Seminal","PROSTATE","BULBOURETHRAL gland"):}`
`{:(A,B,C,D),("Ureter","Prostate","Seminal verticle","Bulbourethral gland"):}`
`{:(A,B,C,D),("Vas DEFERENS","Seminal VESICLE","Prostate","Bulbourebral gland"):}`
`{:(A,B,C,D),("Vas deferns","Seminal vesicle","Bulbourethral gland","Prostate"

(a), (B) and (d)
(a), (C) and (E)
all EXCEPT (e)
all except (a)

Testis `rarr` Epididymis `rarr` Vasa efferentia `rarr` Rete testis `rarr` INGUINAL canal `rarr` Urethra
Seminiferous tubules `rarr` Rete testis `rarr` Vasa efferentia `rarr` Epididymis `rarr` VAS DEFERENS `rarr` Ejaculatory DUCT `rarr` Urethra `rarr` Urethral MEATUS
Seminiferous tubules `rarr` Vasa efferentia `rarr` Epididymis `rarr` Inguinal canal `rarr` Urethra
Testis `rarr` Epididymis `rarr` Vasa efferentia `rarr` Vas deferens `rarr` Ejaculatory duct `rarr` Inguinal canal `rarr` Urethra `rarr` Urethral meatus

lichens RARR BRYOPHYTES rarr SHRUBS rarr herbs rarr forest
lichensrarr bryophytes rarr herbs rarr shrubs rarr forest
grass rarr bryophytes rarr shrubs rarr herbs rarr forest
mossrarr grassrarr shrubs rarr herbs rarr forest

I and II
II and III
I and IV
All of these

i and III
i, II and iii
ii, iii and iv
i only

`N_(t+1) = N_t+[(B+I) - (D+E)]`
`N_(t+1) = N_t[(B+I)+(D+E)]`
`N_t = N_(t+1) + [(B+I)-(D+E)]`
`N_(t+1) = N_t[(B+I) + (D-E)]`

I and II
II and III
I and III
All of these

Seminiferous TUBULE,VASA efferentia,Vas deferens,EPIDIDYMIS,urethra,RETE testis
Rete testis,Epididymis,vasa efferentia,Vas deferens.Seminiferous tules,urethra
Seminiferous tubule,rete testis,Vasa efferentia,Epididymis,Vas deferens,urethra
seminiferous tubule,Vas deferens,Epididymis, Rete testis,urethra,Vasa efferentia

B & d
a & b 
C & d
a & c