Match the following locations in organs with their respective features:
(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson’s capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner’s Glands (iv) Liver
a.
(iii) (iv) (i) (ii)
Correct Answer
b.
(iii) (ii) (i) (iv)
c.
(iii) (i) (ii) (iv)
d.
(ii) (iv) (i) (iii)
Step-by-Step AI Explanation
Verified Method
Crypts of Lieberkuhn are present in the small intestine, Glisson’s capsule is the covering of the hepatic lobule in the liver, Islets of Langerhans are the endocrine part of the pancreas, and Brunner’s glands are located in the duodenum of the small intestine.
Q1mcq
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :
a.
Pteridophytes
Correct Answer
b.
Gymnosperms
c.
Liverworts
d.
Mosses
Step-by-Step AI Explanation
Verified Method
The female gametophytes in Pteridophytes are retained on the parent sporophytes for a variable period. Development of the zygotes into a young embryo takes place within the female gametophyte.
Q2mcq
Extrusion of second polar body from egg nucleus occurs :
a.
Before entry of sperm into ovum
b.
Simultaneously with first cleavage
c.
After entry of sperm but before fertilization
Correct Answer
d.
After fertilization
Step-by-Step AI Explanation
Verified Method
Sperm entry into the secondary oocyte triggers the completion of meiosis-II, breaking the metaphase-promoting factor and activating the anaphase-promoting complex, which causes the extrusion of the second polar body.
Q3mcq
DNA precipitation out of a mixture of biomolecules can be achieved by treatment with :
a.
Methanol at room temperature
b.
Chilled chloroform
c.
Isopropanol
d.
Chilled ethanol
Correct Answer
Step-by-Step AI Explanation
Verified Method
Chilled ethanol is used for DNA precipitation from a solution of biomolecules. This process is commonly referred to as spooling.
Q4mcq
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to :
a.
Proliferation of fibrous tissues and damage of the alveolar walls
b.
Reduction in the secretion of surfactants by pneumocytes
c.
Benign growth on mucous lining of nasal cavity
d.
Inflammation of bronchi and bronchioles
Correct Answer
Step-by-Step AI Explanation
Verified Method
Asthma is an allergic respiratory disorder characterized by inflammation and constriction of the bronchi and bronchioles, leading to wheezing.
Q5mcq
The Earth summit held in Rio de Janeiro in 1992 was called :
a.
to assess threat posed to native species by invasive weed species
b.
for immediate steps to discontinue use of CFCs that were damaging the ozone layer
c.
to reduce CO2 emissions and global warming
d.
for conservation of biodiversity and sustainable utilization of its benefits
Correct Answer
Step-by-Step AI Explanation
Verified Method
The Earth Summit held in Rio de Janeiro in 1992 was convened for the purpose of biodiversity conservation and the sustainable utilization of its benefits.
Q6mcq
Match the hominids with their correct brain size :
(a) Homo habilis (i) 900 cc
(b) Homo neanderthalensis (ii) 1350 cc
(c) Homo erectus (iii) 650-800 cc
(d) Homo sapiens (iv) 1400 cc
a.
(1) (iii) (iv) (i) (ii)
Correct Answer
b.
(2) (iv) (iii) (i) (ii)
c.
(3) (iii) (i) (iv) (ii)
d.
(4) (iii) (ii) (i) (iv)
Step-by-Step AI Explanation
Verified Method
Correct pairings: Homo sapiens: 1350 cc, Homo neanderthalensis: 1400 cc, Homo erectus: 900 cc, Homo habilis: 650-800 cc.
Q7mcq
How does steroid hormone influence the cellular activities ?
a.
Activating cyclic AMP located on the cell membrane
b.
Using aquaporin channels as second messenger
c.
Changing the permeability of the cell membrane
d.
Binding to DNA and forming a gene-hormone complex
Correct Answer
Step-by-Step AI Explanation
Verified Method
Steroid hormones, which are lipid-soluble, cross the cell membrane to interact with intracellular receptors. The hormone-receptor complex then binds to DNA to regulate gene expression.
Q8mcq
Expressed Sequence Tags (ESTs) refers to :
a.
DNA polymorphism
b.
Novel DNA sequences
c.
Genes expressed as RNA
Correct Answer
d.
Polypeptide expression
Step-by-Step AI Explanation
Verified Method
Expressed Sequence Tags (ESTs) refer to fragments of DNA sequences that are expressed as RNA, commonly used in genome sequencing projects.
Q9mcq
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield ?
a.
Gibberellin and Abscicic acid
b.
Cytokinin and Abscisic acid
c.
Auxin and Ethylene
Correct Answer
d.
Gibberellin and Cytokinin
Step-by-Step AI Explanation
Verified Method
In pineapple plants, the application of Auxins and Ethylene is used to induce artificial flowering throughout the year to increase yield.
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It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
a.
Gibberellin and Abscisic acid
b.
Cytokinin and Abscisic acid
c.
Auxin and Ethylene
d.
Gibberellin and Cytokinin
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Match the following hormones with the respective disease: (a) Insulin (i) Addison’s disease, (b) Thyroxin (ii) Diabetes insipidus, (c) Corticoids (iii) Acromegaly, (d) Growth Hormones (iv) Goitre, (v) Diabetes mellitus. Select the correct option.
a.
(a)-(v), (b)-(iv), (c)-(i), (d)-(iii)
b.
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
c.
(a)-(v), (b)-(i), (c)-(ii), (d)-(iii)
d.
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
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Match the following structures with their respective location in organs: (a) Crypts of Lieberkuhn (i) Pancreas, (b) Glisson’s capsule (ii) Duodenum, (c) Islets of Langerhans (iii) Small intestine, (d) Brunner’s Glands (iv) Liver. Select the correct option.
a.
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
b.
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
c.
(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
d.
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
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Consider the following statements:
(A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
(B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.
a.
Both (A) and (B) are false
b.
(A) is false but (B) is true
c.
Both (A) and (B) are true
d.
(A) is true but (B) is false
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What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?
a.
100 beats per minute
b.
125 beats per minute
c.
50 beats per minute
d.
75 beats per minute
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If the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL, what is the heart rate?
a.
100 beats per minute
b.
125 beats per minute
c.
50 beats per minute
d.
75 beats per minute
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Tidal Volume and Expiratory Reserve Volume of an athlete are 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?
a.
2200 mL
b.
2700 mL
c.
1500 mL
d.
1700 mL
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Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?
a.
2200 mL
b.
2700 mL
c.
1500 mL
d.
1700 mL
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Match the following organisms with the products they produce:
(a) Lactobacillus (i) Cheese
(b) Saccharomyces cerevisiae (ii) Curd
(c) Aspergillus niger (iii) Citric Acid
(d) Acetobacter aceti (iv) Bread
(v) Acetic Acid
a.
(a)-(iii), (b)-(iv), (c)-(v), (d)-(i)
b.
(a)-(ii), (b)-(i), (c)-(iii), (d)-(v)
c.
(a)-(ii), (b)-(iv), (c)-(v), (d)-(iii)
d.
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)
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Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body. Select the correct option of animal groups which possess all the above characteristics.
a.
Arthropoda, Mollusca and chordata
b.
Annelida, Mollusca and chordata
c.
Annelida, Arthropoda and chordata
d.
Annelida, Arthropoda and Mollusca
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Match the following organisms with their respective characteristics: (a) Pila (b) Bombyx (c) Pleurobrachia (d) Taenia (i) Flame cells (ii) Comb plates (iii) Radula (iv) Malpighian Tubules
a.
(1) (ii) (iv) (iii) (i)
b.
(2) (iii) (ii) (iv) (i)
c.
(3) (iii) (ii) (i) (iv)
d.
(4) (iii) (iv) (ii) (i)
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A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
a.
0.16(AA); 0.48 (Aa); 0.36(aa)
b.
0.16 (AA); 0.36(Aa); 0.48(aa)
c.
0.36 (AA); 0.48 (Aa); 0.16 (aa)
d.
0.16 (AA); 0.24 (Aa); 0.36 (aa)
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Use of an artificial kidney during hemodialysis may result in:
(a) Nitrogenous waste build-up in the body
(b) Non –elimination of excess potassium ions
(c) Reduced absorption of calcium ions from gastro-intestinal tract
(d) Reduced RBC production
Which of the following options is the most appropriate ?
a.
(c) and (d) are correct
b.
(a) and (d) are correct
c.
(a) and (b) are correct
d.
(b) and (c) are correct
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In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation, pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statement from the following :
a.
Ratio of F2 is 1/4 (Red) : 2/4 (Pink) : 1/4 (White)
b.
Law of Segregation does not apply in this experiment
c.
This experiment does not follow the Principle of Dominance
d.
Pink colour in F1 is due to incomplete dominance
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In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5kg die. Which type of selection process is taking place ?
a.
Disruptive Selection
b.
Cyclical Selection
c.
Directional Selection
d.
Stabilizing Selection
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In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5kg die. Which type of selection process is taking place?
a.
Disruptive Selection
b.
Cyclical Selection
c.
Directional Selection
d.
Stabilizing Selection
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Match the Column-I with Column-II : Column-I (a) P-wave (b) QRS complex (c) T-wave (d) Reduction in the size of T-wave Column-II (i) Depolarisation of ventricles (ii) Repolarisation of ventricles (iii) Coronary ischemia (iv) Depolarisation of atria (v) Repolarisation of atria. Select the correct option.
a.
(1) (ii) (i) (v) (iii)
b.
(2) (ii) (iii) (v) (iv)
c.
(3) (iv) (i) (ii) (iii)
d.
(4) (iv) (i) (ii) (v)
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Match the following genes of the Lac operon with their respective products : (a) i gene (i) β-galactosidase (b) z gene (ii) Permease (c) a gene (iii) Repressor (d) y gene (iv) Transacetylase. Select the correct option.
a.
(1) (iii) (i) (iv) (ii)
b.
(2) (iii) (iv) (i) (ii)
c.
(3) (i) (iii) (ii) (iv)
d.
(4) (iii) (i) (ii) (iv)
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Match Column-I with Column–II. Column-I (a) Saprophyte (b) Parasite (c) Lichens (d) Mycorrhiza Column-II (i) Symbiotic association of fungi with plant roots (ii) Decomposition of dead organic materials (iii) Living on living plants of animals (iv) Symbiotic association of algae and fungi. Choose the correct answer from the options given below:
a.
(1) (ii) (i) (iii) (iv)
b.
(2) (ii) (iii) (iv) (i)
c.
(3) (i) (ii) (iii) (iv)
d.
(4) (iii) (ii) (i) (iv)
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Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains :
a.
Macrophages
b.
Immunoglobulin A
c.
Natural killer cells
d.
Monocytes
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