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Recent questions tagged sec-a
Questions
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the ori
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
From where the parturition signals arise - mother or foetus? Mention the main hormone involved in pa
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
What is the role of cervix in human female reproductive system?
cbse
class12
ch3
exemplar
theoryquestion
biology
sec-a
human reproduction
asked
Jun 14, 2017
by
pady_1
1
answer
Name the type of pollination in self incompatible plants.
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
What is self incompatibility?
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Can an unfertilized egg, apomictic embryosac give rise to diploid embryo? If yes, then how?
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
In case of polyembryony, if an embryo develops from synergid and another from the nucellus which is
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Name the part of the pistil which develop into fruits and seeds.
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Name the common function that cotyledons and nucellus perform.
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Name the part of the gynoecium that determines the compatible nature of the pollen grain.
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Name the component cells of the 'egg apparatus' in the embryo sac.
cbse
class12
ch2
exemplar
theoryquestion
biology
sec-a
sexual reproduction in plants
asked
Jun 12, 2017
by
pady_1
1
answer
Give reasons as to why cell division cannot be a type of reproduction in multicellular organism.
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 11, 2017
by
pady_1
1
answer
Rearrange the following events of sexual reproduction in the sequence in which they occur in a flowe
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 11, 2017
by
pady_1
1
answer
What do the following parts of a flower develop into after fertilization ?
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 11, 2017
by
pady_1
1
answer
Between an annual and a perennial plant, which one has a shorter juvenile phase? Give one reaso
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 11, 2017
by
pady_1
1
answer
Why do we refer to offspring formed by asexual method of reproduction as clones ?
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 9, 2017
by
pady_1
1
answer
Mention two inherent characteristics of Amoeba and yeast that enable them to reproduce ase
cbse
class12
ch1
exemplar
theoryquestion
biology
sec-a
reproduction in organisms
asked
Jun 9, 2017
by
pady_1
1
answer
How does vulcanization change the properties of natural rubber ?
cbse
class12
chemistry
sec-a
ch-14
biomolecules
asked
Feb 15, 2017
by
meena.p
1
answer
What is the hybridisation of central metal ion and shape of Wilkinson’s catalyst ?
class12
cbse
chemistry
coordinate-compounds
ch-9
sec-a
asked
Jan 30, 2017
by
sharmaaparna1
1
answer
Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
0
answers
Consider the following statements about immunological disorder.
i. Deficiency in immune response is called immunodeficiency.
ii. Inappropriate immune response against self antigen is called auto immunity
iii. Immunodeficiency resulting from a genetic or developmental defect is called primary immunodeficiency.
iv. Severe combined immune deficiency is due to secondary immune deficiency
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Inbreeding is carried out in animal husbandry because it
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
1
answer
Assertion: Ringworms generally develop in skin folds such as in groins and between toes.
Reason: Heat and moisture help the fungus to thrive well.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by same particular restriction enzymes?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
1
answer
Which one of the following alcoholic drink is produced without distillation?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Assertion: Streptococcus thermophilus increases nutritional value of milk.
Reason: Curd and yoghurt have higher vitamin content than milk.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
2
answers
Which one of the following microbes transform normal plant and animal cells to cancerous cells respectively?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Stirred tank reactors have advantages over shake flasks because they
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Dolly sheep was genetically similar to
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
2
answers
A monopoly granted to a person who has either invented a new and a useful article, made improvement in the existing article or invented a new process of making an article is called
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Which of the following has been covered under broad patent category?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
2
answers
Which of the following statements is not true?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Contamination of water with sewage is indicated by cysts of
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Increasing skin cancer and high mutation rate are the result of
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
2
answers
Given figure represents biomagnifications of DDT in an aquatic food chain. Select the incorrect statement regarding this.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Study the following figures and identify the enzymes involved in steps I and II.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
The domestic sewage in large cities
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Match column I with Column II and select the correct answer
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Which of the following statements regarding gene therapy is/are correct?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Bt toxin is not toxic to human beings because
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
Assertion: Genetic Engineering requires both nucleases and ligases
Reason: Ligases produce the nick in the r-DNA molecule.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Identify the figures A and B and select the correct option
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
0
answers
Which of the following is not required in the preparation of a recombinant DNA molecule?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
priyanka.c
1
answer
What can you infer about the structures shown in the figure?
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
1
answer
Assertion: In MOET, hormones with progesterone-like activity are given for cow for inducing super ovulation <br> Reason: After mating, the embryos at 4-6 celled stage are removed and transferred to surrogate mothers.
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
1
answer
Coacervates are
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
1
answer
A baby has been born with a small tail. It is the case exhibiting
cbse
class12
biology
zoology
neet
sec-a
asked
Jan 27, 2017
by
meena.p
2
answers
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