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Recent questions tagged sec-a
Questions
What are fermentors?
cbse
class12
ch10
exemplar
theoryquestion
biology
sec-a
microbes in human welfare
asked
Jul 9, 2017
by
pady_1
1
answer
Why does "Swiss Cheese" have big holes?
cbse
class12
ch10
exemplar
theoryquestion
biology
sec-a
microbes in human welfare
asked
Jul 9, 2017
by
pady_1
1
answer
"Give me the living cell of any plant and I will give you thousand plants of the same type". Is this
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
The term desirable trait can mean different things for different plants. Justify the statement with
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
Give two important contributions of M.S. Swaminathan.
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
Would it be wrong to call plants obtained through micro propagation as 'clones'? Comment.
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
A person who is allergic to pulses was advised to take a capsule of Spirulina daily. Give the reason
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
What is protoplast fusion?
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
What is meant by "hidden hunger"?
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
Millions of chicken were killed in West Bengal, Assam, Orissa and Maharashtra. What was the reason?
cbse
class12
ch9
exemplar
theoryquestion
biology
sec-a
strategies for enhancement in food production
asked
Jul 8, 2017
by
pady_1
1
answer
For an organ transplant, it is an advantage to have an ideal twin. Why?
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
If a patient is advised Anti Retroviral Therapy, which infection is he suffering from? Name the caus
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
Why is an antibody molecule repreented as $H_2L_2$ ?
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
Why is that during changing weather, one is advised to avoid crowded and air conditioned place like
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
What would happen to immune system, if thymus gland is removed from the body of a person?
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
Certain pathogens are tissue/organ specific. Justify the statement with suitable example.
cbse
class12
ch8
exemplar
theoryquestion
biology
sec-a
human health and diseases
asked
Jul 7, 2017
by
pady_1
1
answer
Among Ramapithecus, Australopithecines and **** habilis-who probably did not eat meat?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
By what name was the first hominid was knnown?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
Who among the Dryopithecus or Ramapithecus more man like?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
What is founder effect?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
Among the five factors that are known to affect Hardy - Weinberg equilibrium, three factors are gene
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
When we talk of functional macromolecules (proteins, enzymes, hormones, receptors, antibodies etc) t
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
How do we compute the age of a rock?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
What is the most important pre-condition for adaptive radiation?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
How do we compute the age of a fossil?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
Give an example of convergent evolution and identify the features towards which they are converging.
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
How do we compute the age of a living tree?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
What are we referring to when we say 'simple organisms' or 'complex organism'?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
Did aquatic life forms get fossilized? If yes, where do we get such fossils?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
What were the characteristics of life forms that had been fossilized?
cbse
class12
ch7
exemplar
theoryquestion
biology
sec-a
evolution
asked
Jul 6, 2017
by
pady_1
1
answer
Name any three viruses which have RNA as the genetic material.
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 5, 2017
by
pady_1
1
answer
During in vitro synthesis of DNA, a researcher used 2', 3'-dideoxycitidine triphosphate as raw nucle
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 5, 2017
by
pady_1
1
answer
What would happen if histones were to be mutated and rich in acidic amino acids such as aspartic aci
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 5, 2017
by
pady_1
1
answer
Retroviruses do not follow central dogma. Comment.
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 5, 2017
by
pady_1
1
answer
Discuss the significance of heavy isotope of nitrogen in the Messelson and Stahl's experiment.
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 4, 2017
by
pady_1
1
answer
What is the function of histones in DNA packaging?
cbse
class12
ch6
exemplar
theoryquestion
biology
sec-a
molecular basis of inheritance
asked
Jul 4, 2017
by
pady_1
1
answer
Even if a character shows multiple allelism, can individuals will have two alleles for that characte
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
Discuss the genetic basic of wrinkled phenotype of pea seed.
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
Genes contains the information that is required to express a particular trait. Explain.
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
In order to obtain the $F_1$ generation, Mendel pollinated pure - breeding tall plant with a pure br
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
Do you think Mendel's law of Inheritance would have been different if the characters that he chose w
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
What is the cross between the progeny of F1 and the homozygous recessive parent called? How is it us
cbse
class12
ch5
exemplar
theoryquestion
biology
sec-a
inheritance and variable
asked
Jun 30, 2017
by
pady_1
1
answer
Males in whom testis fail to descend to the ******* are generally infertile. Why?
cbse
class12
ch4
exemplar
theoryquestion
biology
sec-a
reproductive health
asked
Jun 21, 2017
by
pady_1
1
answer
What is the significance of progesterone-estrogen combination as a contraceptive measure?
cbse
class12
ch4
exemplar
theoryquestion
biology
sec-a
reproductive health
asked
Jun 21, 2017
by
pady_1
1
answer
Mention the primary aim of the “Assisted Reproductive Technology” (ART) programmes.
cbse
class12
ch4
exemplar
theoryquestion
biology
sec-a
reproductive health
asked
Jun 21, 2017
by
pady_1
1
answer
STDs can be considered as self invested diseases. Comment.
cbse
class12
ch4
exemplar
theoryquestion
biology
sec-a
reproductive health
asked
Jun 21, 2017
by
pady_1
1
answer
Reproductive health only refers to healthy reproductive functions. Comment.
cbse
class12
ch4
exemplar
theoryquestion
biology
sec-a
reproductive health
asked
Jun 21, 2017
by
pady_1
1
answer
Which type of cell division forms spermatids from the secondary spermatocytes?
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
What is the significance of ampullary - isthmic junction in the female reproductive tract?
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
What is the difference between a primary oocyte and a secondary oocyte?
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
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