HSC Science (General)
Academic Year: 2013-2014
Date: October 2013
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Which one of the following is a true pleiotropic gene?
HbA
HbS
HbD
HbP
Chapter: [0.03] Inheritance and Variation
cDNA means ______.
coiled DNA
cytoplasmic DNA
complementary DNA
circular DNA
Chapter: [0.12] Biotechnology
Wheat variety 'Atlas 66' is improved for ______.
high proteins
high carbohydrates
high fats
high vitamins
Chapter: [0.11] Enhancement of Food Production
Erythromycin is obtained from ______.
Penicillium chrysogenum
Streptomyces griseus
Gibberella fujikuroi
Streptomyces erythreus
Chapter: [0.11] Enhancement of Food Production
Write the most appropriate answer from the given question :
Which one of the following is C4 plant?
Sunflower
Soyabean
Sugarcane
Spinach
Chapter:
Write the most appropriate answer from the given question :
The respiratory quotient (R.Q.) of carbohydrate is .............. .
0.7
1
0.9
0.1
Chapter:
The depletion of the ozone layer is due to ______.
CO2
CO
CH4
CFCs
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Answer in ‘one’ sentence :
From which microorganism is vinegar obtained?
Chapter: [0.11] Enhancement of Food Production
Answer in ‘one’ sentence :
Which is the first CO2 acceptor in C3 pathway?
Chapter:
Answer in ‘one’ sentence :
What is fermentation?
Chapter: [0.11] Enhancement of Food Production
Answer in ‘one’ sentence :
What is bioaccumulation?
Chapter: [0.11] Enhancement of Food Production
Which are the bacteria responsible for converting organic acids into methane?
Chapter: [0.11] Enhancement of Food Production
Name the greenhouse gases that contribute to global warming.
Chapter:
Give a neat and labelled sketch of the germinating angiospermic pollen grain.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Explain different biosafety issues that may arise due to genetically modified (GM) organisms.
Chapter: [0.12] Biotechnology
What is gibberellins?
Chapter: [0.07] Plant Growth and Mineral Nutrition
Give the applications of gibberellins.
Chapter: [0.07] Plant Growth and Mineral Nutrition
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Suggest measures to conserve the forests.
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Give the names and functions of enzymes involved in lactose metabolism in E. Coli.
Chapter: [0.11] Enhancement of Food Production
Give the applications of the PCR technique.
Chapter: [0.12] Biotechnology
Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding.
Chapter: [0.11] Enhancement of Food Production
Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy.
Chapter: [0.05] Origin and Evolution of Life
What is vegatative reproduction? Describe any 'three' natural methods of vegetative reproduction with examples?
Chapter: [0.01] Reproduction in Lower and Higher Plants
Describe the cross between a homozygous tall, round-seeded pea plant and a dwarf, wrinkled-seeded pea plant. What will be the types of progeny in the F2 generation of this cross and in what proportion will it be?
Name and state the law which is explained by this example.
Chapter: [0.03] Inheritance and Variation
Select and write the most appropriate answer from the given.
Identify the type of isolation where the members of two populations have different mating behaviour which prevents interbreeding:
Seasonal isolation
Ethological isolation
Mechanical isolation
Habitat isolation
Chapter: [0.05] Origin and Evolution of Life
Which of the following is the most appropriate choice as a transgenic animal due to its short genera ti on time?
Pigs
Sheep
Mice
Cows
Chapter: [0.12] Biotechnology
Select and write the most appropriate answer from the given.
Which stage in the life cycle of silk moth secretes silk?
Caterpillar
Egg
Pupa
Adult
Chapter: [0.05] Origin and Evolution of Life
Select and write the most appropriate answer from the given.
Identify the following diagram from the alternatives given below :
T.S. of ovary
T.S. of testis
T.S. of vein
T.S. of thyroid gland
Chapter: [0.1] Human Health and Diseases
Gemmule formation takes place in ________.
Hydra
Spongilla
Planaria
Human being
Chapter: [0.01] Reproduction in Lower and Higher Plants
Select and write the most appropriate answer from the given.
Which of the following hormones is responsible for regulating the blood sugar level in the human body?
Insulin
Growth hormone
Oxytocin
Vasopressin
Chapter: [0.09] Control and Co-ordination
In the 1950s minamata disease was caused by ____________ poisoning.
lead
arsenic
mercury
cadmium
Chapter: [0.1] Human Health and Diseases
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A mother of a one-year-old child wanted to space her second child. Her doctor suggested 'copper- T' Explain its contraceptive action.
Chapter: [0.02] Reproduction in Lower and Higher Animals
Answer in only one sentence of the following question:
Name the gas which caused the Bhopal gas tragedy in 1984.
Chapter: [0.11] Enhancement of Food Production
Answer in only one sentence of the following question:
Mention the role of the pacemaker in human heart.
Chapter: [0.08] Respiration and Circulation
Give any 'two' modes of transmission of amoebiasis.
Chapter: [0.1] Human Health and Diseases
What is vaccine?
Chapter: [0.1] Human Health and Diseases
Very short answer question.
What is adaptive radiation?
Chapter: [0.05] Origin and Evolution of Life
Sketch and label T.S. of human artery.
Chapter: [0.08] Respiration and Circulation
Write a note on Cro-magnon man.
Chapter: [0.05] Origin and Evolution of Life
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
Chapter: [0.03] Inheritance and Variation
State any three goals of the human genome project.
Chapter: [0.04] Molecular Basis of Inheritance
Give economic importance of apiculture
Chapter: [0.11] Enhancement of Food Production
Describe the structure of sex-chromosomes.
Chapter: [0.03] Inheritance and Variation
Write a note on HIV.
Chapter: [0.02] Reproduction in Lower and Higher Animals
How is radioactive waste management carried out?
Chapter:
Sketch and label formation of typical spinal nerve.
Chapter:
With the help of a labelled diagram describe human excretory system.
How will you identify acute kidney injury by urine analysis?
Chapter: [10.02] Excretion and Osmoregulation
With the help of labelled diagramms describe the structures of human sperm and unfertilized ovum.
A couple is unable to conceive. Which modern techniques are available to overcome this problem?
Chapter: [0.02] Reproduction in Lower and Higher Animals
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