Biology Test from Dr Biswas and Biswas for AIPMT : 04 of 10

The horns in mammals as Rhinoceros are produced by 
Cartilage
Skull
Stratum corneum of the skin
Bone
In rabbits and hares the sweat glands are confined to
Area around the lips
Base of the tail
Soles of the paw
Tips of the pinnae
In human skin, which of the following types of epidermal glands are present?
Ceruminous, sebaceous and sweat glands
Mammary glands
Meibomian and glands of Moll
All of the above
Which of the following is unsaturated fatty acid?
Linoleic acid
stearic acid
lauric acid
palmitic acid
Protoplasmic fusion is
fusion of hybrid cells
fusion of protoplasts with two different nuclei
fusion of only cytoplasm
fusion of different protoplasts with one nucleus
Trypsinogen is converted to trypsin in presence of
chymotrypsin
enterokinase
amylopsin
renin
The integument of Rabbit differs from that of frog in
Possessing stratum corneum for protection against wear and tear
Possessing mucous glands for producing mucous
Possessing sebaceous glands which produce sebum for keeping skin greasy and water proof
Not possessing subcutaneous fat
Centre of intelligence in brain is
cerebrum
cerebellum
hypothalamus
medulla oblongata
/
A. B. C. D. 2 3 4 1
1 2 3 4
4 3 2 1
3 2 1 4
Correct statement with reference to Watson Crick Model of DNA is
2 hydrogen bonds between cytosine and guanine 3 hydrogen bonds between adenine and thymidine
1 hydrogen bond between cytosine and guanine 3 hydrogen bonds between adenine and thymidine
1 hydrogen bond between adenine and thymidine 3 hydrogen bonds between cytosine and guanine
3 hydrogen bonds between cytosine and guanine 2 hydrogen bonds between adenine and thymidine
Hinge joint is present between
Humerus and pectoral girdle
Femur and acetabulum
Humerus and radio-ulna
Femur and pelvic girdle
The joint between the lower jaw and the skull is
Gliding
Hinge
Perfect joint
Saddle joint
Diabetes insipidus occurs due to the hyposecretion of
Thymosine
Oxytocin
Insulin
Vasopressin
Steroid hormones are almost similar in structure to
Triglyceride
Tyrosine
Coenzyme-A
Cholesterol
Secretion of which of the following is under ‘neurosecretory nerve axons’?
Pineal
Adrenal cortex
Anterior pituitary
Posterior pituitary
Addison's disease results from
Hyposecretion of adrenal
Hypertrophy of gonads
Hyperactivity of cells of Leydig
None of these
/
b and d
c and d
a and c
a and b
Consider the following statements concerning food chains: (a) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation (b) Removal of most of the carnivores resulted in an increased population (c) The length of food chains is generally limited to 3-4 trophic levels due to energy loss. (d) The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?
b, c
c, d
a, d
a, b
Ascaris is characterized by__________
absence of true coelom but presence of metamerism
presence of neither true coelom nor metamerism
presence of true coelom but absence of metamerism
presence of true coelom and metamerism amerisation)
Consider the following four statements (a - d) about certain desert animals such as kangaroo rat. (a) They have dark colour and high rate of reproduction and excrete solid urine (b) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs (c) They feed on dry seeds and do not require drinking water (d) They excrete very concentrated urine and do not use water to regulate body temperature. Which two of the above statements for such animals are true?
c and d
b and c
c and a
a and b
Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life? 
They were able to reproduce
They could separate combinations of molecules from the surroundings
They were partially isolated from the surroundings
They could maintain an internal environment
The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in :
Pomegranate
Orange
Guava
Cucumber
Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?
CFCs 14%, Methane 20%
CO2 40%, CFCs 30%
N2O 6%, CO2 86%
Methane 20%, N2O18%
World Summit on Sustainable Development (2002) was held in
Brazil
Sweden
Argentina
South Africa
Quercus species are the dominant component in:
Temperate deciduous forests
Alpine forests
Scrub forests
Tropical rain forests
Palynology is study of
palms
flowers
fruits
pollen grain.
Perisperm is
remains of nucellus
outer part of embryo sac
degenerated synergid
degenerated secondary nucleus
Movement of sperms towards archegonial neck is
chemotropism
photoaxis
chemotaxis
hydrotropism.
Ripening of fruit can be accelerated by
Heating
Ethylene
Nitrogen
I.A.A.
Major protein in our body is
Collagen
Scotopsin
Pepsin
Ptyalin.
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n.arivishnu

i like ravaneshwara a small kid of l.k.g

3927 days 11 hours 37 minutes ago

Dr. SUBROTO BISWAS
Professor/SME/Instructor in Biology (NEET/AIIMS)
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