HSC Science (General)
Academic Year: 2013-2014
Date: March 2014
Advertisements
The biological scissor is ______.
restriction endonuclease
gyrase
DNA ligase
helicase
Chapter: [0.12] Biotechnology
Dead and dried cell mass of microbes having nutritive value is also known as -----------
BGA (blue green algae).
SCP (Single-cell protein).
STP (sewage treatment plant).
VAM (vesicular arbuscularmycorrhizae)
Chapter: [0.11] Enhancement of Food Production
From the visible spectrum of light, which component is reflected by the given leaves?
Blue
Red
Green
Orange
Chapter: [0.05] Origin and Evolution of Life
For the formation of 50 seeds, how many minimum meiotic divisions are necessary?
25
50
75
63
Chapter: [0.01] Reproduction in Lower and Higher Plants
In bisexual flowers, maturation of gynoecium before androecium is known as ______.
protandry
protogyny
gynandry
diciliny
Chapter: [0.01] Reproduction in Lower and Higher Plants
The permanent removal of forests and woodlands is called ---------------
Reforestation
afforestation
deforestation
agroforestry
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
The abundance of phosphate, causing algal overgrowth resulting in depletion of oxygen and killing other aquatic life is known as --------------------------.
Ecological succession
eutrophication
guano deposit
greenhouse effect
Chapter: [0.14] Ecosystems and Energy Flow
What is ‘jumping genes’?
Chapter: [0.11] Enhancement of Food Production
Give the importance of heterocyst in cyanobateria.
Chapter: [0.03] Inheritance and Variation
From which microbial sources can pectinase be obtained?
Chapter: [0.11] Enhancement of Food Production
Which is the ultimate pathway for fixing carbon dioxide (CO2) into glucose?
Chapter:
Name the process of respiration which does not involve intake of oxygen (O2).
Chapter:
What is biomagnification?
Chapter: [0.14] Ecosystems and Energy Flow
Sketch and label the ‘clover leaf model’ of t-RNA.
Chapter: [0.04] Molecular Basis of Inheritance
‘There is a hole in the ozone layer’. What do you understand by this?
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Name any ‘two’ edible varieties of mushrooms. Give nutritional values of these.
Chapter: [0.14] Ecosystems and Energy Flow
With the help of diagrams, describe emasculation and bagging.
Chapter: [0.05] Origin and Evolution of Life
Advertisements
What is ‘biopatent’? Give any two examples.
Chapter: [0.12] Biotechnology
Describe any ‘two’ applications of tissue culture technique.
Chapter: [0.11] Enhancement of Food Production
What is ‘photorespiration’? Explain it with diagrammatic representation.
Chapter:
Describe the experiment of Hershey and Chase to prove that DNA is the genetic material.
Hershey and Chase Experiment
Chapter: [0.04] Molecular Basis of Inheritance
Sketch and label ‘ultrastructure of mitochondrion’.
Chapter: [0.04] Molecular Basis of Inheritance
What is ‘double fertilization’? Describe it with the help of a neat and well-labeled diagram. Give its importance.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Explain the law of independent assortment with a suitable example.
Chapter: [0.03] Inheritance and Variation
The most common types of fossils are ------------------------.
moulds
casts
Actual remains
models
Chapter: [0.05] Origin and Evolution of Life
Which of the following traits is never observed in a human female?
Hypertrichosis
Haemophilia
Colour blindness
Myopia
Chapter: [0.03] Inheritance and Variation
Safety of polio vaccine is tested in transgenic _________________.
Pig
rabbit
fish
mice
Chapter: [0.12] Biotechnology
Mucous membrane trapping the microbes acts as a ---------------
physiological barrier
physical barrier
Chapter: [0.1] Human Health and Diseases
Conversion of ammonia into uric acid occurs through --------------
ornithine cycle
guanine cycle
Ionosinic pathway
Kreb’s cycle
Chapter:
Spinal cord and sympathetic ganglion of autonomous nervous system are connected by ______________.
ramus ventralis
ramus communicans
ramus dorsalis
connective
Chapter: [0.09] Control and Co-ordination
Pregnancy in second trimester is maintained by______.
LH (luteinizing hormone)
Progesterone
Estrogen
HCG (human chorionic gonadotropin)
Chapter: [0.02] Reproduction in Lower and Higher Animals
What is ‘gene flow’?
Chapter: [0.05] Origin and Evolution of Life
Advertisements
What do sex linked traits appear in males than in females?
Chapter: [0.03] Inheritance and Variation
What is ‘restriction digestion’?
Chapter: [0.12] Biotechnology
What is the use of tissue plasminogen activator?
Chapter: [0.12] Biotechnology
Name the type of animal breeding carried out to produce amule.
Chapter: [0.11] Enhancement of Food Production
Why is zona pellucid retained around the egg till it reaches the uterus?
Chapter: [0.02] Reproduction in Lower and Higher Animals
Draw a neat and well labeled diagram of human excretory system.
Chapter: [10.02] Excretion and Osmoregulation
Write a note on desert adaptations.
Chapter: [0.13] Organisms and Populations
Give the economic importance of fisheries.
Chapter: [0.11] Enhancement of Food Production
Distinguish between X and Y chromosomes.
Chapter: [0.03] Inheritance and Variation
Give applications of a vaccine.
Chapter: [0.12] Biotechnology
With the help of a chart, explain the method of sex determination in honeybees.
Chapter: [0.03] Inheritance and Variation
Describe the structure of an antibody.
STRUCTURE OF ANTIBODY
Chapter: [0.1] Human Health and Diseases
Distinguish between Natality and Mortality.
Chapter: [0.13] Organisms and Populations
Competition and Mutualism.
Chapter: [0.13] Organisms and Populations
Agricultural water pollution and Shipping water pollution.
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Sketch and label V.S. of a human eye.
Chapter: [0.09] Control and Co-ordination
Draw a neat and well-labeled diagram showing T.S. of the ovary and describe the menstrual cycle in human females.
Chapter: [0.02] Reproduction in Lower and Higher Animals
The help of a well-labelled diagram describes the internal structure of the human heart.
Chapter: [0.08] Respiration and Circulation
Other Solutions
Submit Question Paper
Help us maintain new question papers on Shaalaa.com, so we can continue to help studentsonly jpg, png and pdf files
Maharashtra State Board previous year question papers 12th Standard Board Exam Biology with solutions 2013 - 2014
Previous year Question paper for Maharashtra State Board 12th Standard Board Exam Biology-2014 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
By referring the question paper Solutions for Biology, you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of Maharashtra State Board 12th Standard Board Exam.
How Maharashtra State Board 12th Standard Board Exam Question Paper solutions Help Students ?
• Question paper solutions for Biology will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.
