In Pinus needle vascular bundles are
(a) Collateral and open
(b) Bicollateral
(c) Collateral and closed
(d) Concentric
The mutation theory was proposed by Hugo de Vries mainly on the basis of his experiments on
(a) Drosophila melanogaster
(b) Mirabilis jalapa
(c) Oenothera lamarckiana
(d) Pisum sativum
True coelom appeared first in the course of evolution in
(a) Echinodermata
(b) Annelida
(c) Chordata
(d) Aschelminthes
In Pinus oospore develops
(a) Compound suspensor with single embryo mass
(b) No suspensor but single embryo mass
(c) Compound coiled suspensor with four embryo masses
(d) Simple suspensor with single embryo mass
If ossification occurs in tendon, which bones is formed
(a) Sesamoid bone
(b) Replacing bone
(c) Membrane bone
(d) Dermal bone
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One molecule of ATP when hydrolysed yield energy
(a) 14.0 kcal
(b) 3.5 kcal
(c) 7.3 kcal
(d) 11.0 kcal
Which of the following shows alternation of generations
(a) Escherichia coli
(b) Funaria
(c) Chlamydomonas
(d) Spirogyra
Triple antigen or DPT is meant for
(a) A vaccine against malaria, typhoid and cance
(b) Mixture of viruses that causes tetanus, diptheria and whooping cough
(c) A vaccine against polio, rabies and hepatitis
(d) A vaccine against tetanus, whooping cough and diptheria
Utilisation of biological knowledge for producing materials useful to society is called
(a) Basic Biology
(b) Technology
(c) Applied Biology
(d) Biotechnology
If contraction of biceps brachii muscle is the effort, elbow joint is the fulcrum and a stone in hand is the resistance. This is the example of which type of lever
(a) First class lever
(b) Second class lever
(c) Third class lever
(d) None of the above
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“Theory of continuity of Germplasm” was propounded by
(a) August Weismann
(b) Gregor Mendel
(c) Lamarck
(d) Darwin
Chromosome number is halved in which stage of meiosis
(a) Metaphase I
(b) Anaphase I
(c) Metaphase II
(d) Telophase I
The only movable bones in the skull of man is
(a) Maxilla
(b) Frontal
(c) Mandible
(d) Nasal
Amnesia is
(a) Loss of appetite
(b) Loss of memory
(c) Loss of blood
(d) Loss of filtration capacity of kidney
Young sporophyte of fern draws nutrition from its prothallus through
(a) Haustorium
(b) Foot
(c) Root
(d) Rhizoids
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Korean, Japenese, Chinese and native Americans are
(a) 85% Rh+
(b) 95% Rh+
(c) 100% Rh+
(d) 75% Rh+
Maximum no. of individuals of a species that can be supported in a habit at a given time is called as
(a) Population density
(b) Dependency ratio
(c) Age-Pyramid
(d) Carying capacity
Pre historic man
(a) Did not cultivate crops at all
(b) Cultivated crops on mountains
(c) Cultivated crops near forests
(d) Cultivated crops near river
A cell when placed in 0.5M solution of sugar exhibits incipient plasmolysis what would happen it if is placed in 0.5M solution of NaCl
(a) No plasmolysis and no change in volume
(b) Incipient plasmolysis and little change in volume
(c) More plasmolysis and decrease in volume
(d) Cell becomes turgid and volume increases
Auxin does not
(a) Increase the uptake of water by cells
(b) Increase the rate of respiration
(c) Increase the plasticity of cell walls
(d) Increase the rate of photosynthesis
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The artificial drugs used for as a sedative and to reduce the anxiety. It also induces the sleep. This is
(a) LSD
(b) Barbiturates
(c) Paracetamol
(d) Caffeine
When a pure red flowered pea plant is crossed with a pure white flowered pea plant. According to Mendelian law the ratio of hybrid produced in F1 generation is
(a) 75% red : 25% white
(b) All will be red
(c) 50% red : 50% white
(d) 25% red : 75% white
Which of the following glands is not holocrine in nature?
(a) Meibomian gland
(b) Milk gland
(c) Sebaceous gland
(d) Ceruminous gland
Hexose monophosphate shunt is
(a) Pentose-phosphate pathway or (a set of reactions that bypasses the glycolytic and Kreb’s cycle routes for glucose oxidation in the cell
(b) Conversion of glucose into pyruvic acid
(c) The sum of all chemical transformations
(d) A process by which new products are synthesized
Symptoms of manganese deficiency can be overcome by the use of
(a) Manganese sulphate
(b) Manganese dioxide
(c) Colloidal manganese
(d) None of these
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Rous sarcoma virus contains
(a) DNA
(b) RNA
(c) DNA or RNA
(d) None of these
Eustachian Canal of Human ear is
(a) A part of middle ear forming communication of Tympanic Cavity with pharynx
(b) A part of External ear forming communication of middle ear
(c) A part of Internal ear forming communication to Pharynx
(d) A part of Pharynx which communicates the external ear
The most important DNA synthesizing enzyme is
(a) Dna polymerase I
(b) DNA polymerase II
(c) DNA polymerase III
(d) Topoisomerase
Birds specially chicken grown for meat only is known as
(a) Hybrid
(b) Broiler
(c) Murga
(d) Hen
Which of he following observation most strongly support the view that mitochondria contain electron transfer enzymes aggregated into compact associations?
(a) A contractile protein capable of utilizing ATP has been obtained from mitochondria
(b) Mitochondria have highly folded inner wall
(c) Disruption of mitochondria yields membrane fragments which are able to synthesize ATP
(d) Mitochondria in animal embryos have a tendency to concentrate in cells which are to become part of locomotory structures
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Which of the following closely invests of lungs?
(a) Pariental pleuron
(b) Visceral pleuron
(c) Ribs
(d) Sternum
What are the characteristics of depressant
(a) Decreases functional efficiency
(b) Loss of sensation
(c) Lowers the activities of C.N.S.
(d) All the above
What among the following do you consider as the best evidence to show that two species of algae are closely related?
(a) They both respire and related CO2
(b) They both are found on the same habitat
(c) They both reproduce asexually
(d) They both have same type of pigments
RNA has been synthesized in vitro by
(a) Dr. H.G.khurana
(b) Ochoa
(c) Hertwig
(d) Kornberg
Evolutionary convergence is a development of
(a) Common set of characters in closely related groups.
(b) Common set of characters in groups of different ancestry.
(c) Dissimilar characters in closely related group.
(d) Random mating.
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Solenocytes and metanephridia are excretory organs of
(a) Annelida and Arthropoda
(b) Platyhelminthes and Annelida
(c) Coelenterata and Mollusca
(d) Aschelminthes and Annelida
When a large number of sessile flowers grow from a suppressed rachis giving rise to globose structure, the inflorescence is called?
(a) Catkin
(b) Capitate
(c) Umbel
(d) Corymb
The tissue responsible for the formation of stroma of spleen is
(a) Dense connective tissue
(b) Adipose tissue
(c) Elastic connective tissue
(d) Reticular connective tissue
Lower leaflets of the Indian telegraph plant (Desmodium gyrans) exhibit oscillations such movements are called
(a) Nutational movements
(b) Variational movments
(c) Tropism
(d) Tactism
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Cross-pollination is beneficial because it results in
(a) Formation of male offsprings
(b) Weaker progeny
(c) Better progeny
(d) Formation of seeds
Which of the following deficiency disease is prevented by calciferol
(a) Cheilosis
(b) Pellagra
(c) Rickets
(d) Osteomalacia
Seeds are called products of sexual reproduction because they
(a) Give rise to new plants
(b) Are formed by fusion of gametes
(c) Can be stored for long time
(d) Are formed by fusion of pollen tubes
Increase in the blood pressure and heart beat is caused by the hormones
(a) Adrenalin
(b) Thyroxine
(c) Secretin
(d) Gastrin
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The alphabetical nomenclature of vitamins was proposed by
(a) Lunin
(b) Funk
(c) Berzellus
(d) Drummond
The highest percentage of protein is present in
(a) Chlorella
(b) Spirulina
(c) Nostoc
(d) Chlamydomonas
During protein synthesis, an anticodon on t-RNA pairs with
(a) r-RNA nucleotide bases
(b) m-RNA nucleotide bases
(c) Other t-RNA nucleotide bases
(d) DNA nucleotide bases
A factor responsible for cirrhosis of liver is
(a) Vitamins
(b) Fats and oils
(c) Alcoholism
(d) Sugar
The group ‘Amniota’ includes
(a) Birds and Reptitles
(b) Birds and Mammals
(c) Reptitles, and Mammals
(d) Reptiles, Brids and Mammals
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Which of the following type of neuroglia do not occur in CNS?
(a) Oligodendrocytes
(b) Ependymal cells
(c) Microglia
(d) Satellite cells
Otoconia or otoliths are
(a) Large particles of silican
(b) Small crystalline sensory particles
(c) Small sensory particles present in endolymph
(d) Small calcium carbonate particles
Among naturally occurring sugar, which is sweetest
(a) Glucose
(b) Fructose
(c) Galactose
(d) Deoxyribose
Barr body is found in human
(a) Male somatic cells
(b) Ovum
(c) Sperm
(d) Female somatic cells
Neurohypophysis secretes
(a) Vasopressin
(b) Oxytocin
(c) Oxytocin and prolactin
(d) Vasopressin and oxytocin
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The process of “translation” means
(a) Protein synthesis
(b) DNA synthesis
(c) RNA synthesis
(d) Ribosome assembly
Cyanobacteria resembles with bacteria in having
(a) 70s ribosmes
(b) Naked DNA
(c) Petidoglycan wall
(d) All of these
Elimination of unproductive and sick fowls is called as
(a) Culling
(b) Blooding
(c) Prolaps
(d) Dubbing
Polio immunizing vaccine was developed by
(a) E. Jenner
(b) Dr. Salk
(c) ST. Hale
(d) Landsteiner
Deltoid ridge is present in
(a) Humerus
(b) Femur
(c) Radio-ulna
(d) Tibio-fibula
