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Recent questions tagged sec-c
Questions
What are carcinogens? What are the different types of carcinogens? Also mention different methods of cancer treatment.
cbse
class12
biology
zoology
sec-c
asked
Dec 23, 2016
by
meena.p
1
answer
Point out three similarities in the behavior of chromosomes and genes.
cbse
class12
biology
zoology
sec-c
asked
Dec 23, 2016
by
meena.p
1
answer
A tRNA is charged with methionine. a). Name the process involved in the attachment.b)Point out the mRNA codon and anticodon on tRNA for this aminoacid c)What is heterochromatin?
cbse
class12
biology
botany
sec-c
asked
Dec 23, 2016
by
meena.p
1
answer
What do the pictures ‘a’ and ‘b’ illustrate with reference to evolution? Explain.
cbse
class12
biology
zoology
sec-c
asked
Dec 23, 2016
by
meena.p
1
answer
Give any three difference between sexual and asexual reproduction.
cbse
class12
biology
zoology
sec-c
asked
Dec 23, 2016
by
meena.p
1
answer
Integrate $\begin{align*} \int \frac{\sin(x+a)}{\sin (x+b)} dx\end{align*} $
cbse
class12
maths
ch1
sec-c
asked
Dec 22, 2016
by
priyanka.c
1
answer
Express the matrix $A = \begin{bmatrix} 3 & 2 & 3 \\ 4 & 5 & 3 \\ 2 & 4 & 5 \end{bmatrix}$ as the sum of a symmetric and a skew symmetric matrix.
cbse
class12
maths
ch1
sec-c
asked
Dec 22, 2016
by
priyanka.c
1
answer
Assume that each child born is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that
(a) The youngest is a girl.
(b) At least one is a girl.
Pre-natal *** determination is a crime. What will you do if you come to know that some of your known is indulging in pre-natal *** determination ?
cbse
class12
maths
ch1
sec-c
asked
Dec 22, 2016
by
priyanka.c
1
answer
Evaluate $\begin{align*} \int \limits_{-1}^{3/2} |x \sin {\pi \; x}| dx \end{align*}$
cbse
class12
maths
ch1
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
Find the condition that the curves $2x= y^2$ and $2xy = k $ intersect orthogonally.
cbse
class12
maths
ch1
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
Differentiate $x ^{\sin ^{-1} x}$ w.r.t $\sin^{-1} x$
cbse
class12
maths
ch1
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
For what value of $a$ and $b$ is the function $f(x) = \begin{cases} x^2 ,& x \leq c \\ ax+b , & x> c \end{cases} $ is differentiable at $x=c$
cbse
class12
maths
ch1
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
Evaluate : $\begin{vmatrix} a & b-c & c+b \\ a+c & b & c-a \\ a-b & b+a & c \end{vmatrix} $
cbse
class12
maths
ch4
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
On the set $R -\{ -1\} $ a binary operation $\ast$ is defined by $a \ast b = a + b + ab$ for all $a,b \in R - \{-1\}$. Prove that $\ast$ is commutative as well as associative on $R -\{-1\}$. Find the identity element on $\ast$ if any.
cbse
class12
maths
ch1
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
What is the relationship between species richness and area? What is the significance of the slope of regression?
cbse
class12
biology
zoology
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
Evaluate : $\tan \begin{bmatrix} \frac{\pi}{4} + \frac{1}{2} \cos^{-1} \frac{a}{b} \end{bmatrix} + \tan \begin{bmatrix} \frac{\pi}{4} - \frac{1}{2} \cos^{-1} \frac{a}{b} \end{bmatrix}$
cbse
class12
maths
ch2
sec-c
asked
Dec 21, 2016
by
priyanka.c
1
answer
Describe the specific adaptation of xerophytes w.r.t root, stem and leaves.
cbse
class12
biology
botany
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
What are GM crops? Highlight any 4 advantages of GM crops.
cbse
class12
biology
botany
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
What are recombinant proteins? How do bio reactors help in this production? or Why are restriction endonucleases called so? What is a palindromic sequence? How do restriction endonucleases act on palindromic sites to create ‘sticky ends’?
cbse
class12
biology
botany
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
Name the regions marked A,B and C
cbse
class12
biology
botany
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
In the figure, label X and Y and explain the functioning of the plant
cbse
class12
biology
botany
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
What are the measures that need to be taken for effective poultry farm management?
cbse
class12
biology
zoology
sec-c
asked
Dec 21, 2016
by
meena.p
1
answer
It was diagnosed by a specialist that the immune system of a patient has been suppressed. Describe the infection and the mechanism of penetration into the body.
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Given below is the diagrammatic representation of the experimental set up used by Miller for his experiment (a)Write the names of the different gases contained and the conditions set for reaction in flask A.(b)State the type of organic molecules he collected in the water at “B”. (c) Write the conclusions he arrived at?
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
List four symptoms of Down’s syndrome. What is the basis of this disorder?
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Draw a clover leaf structure of tRNA showing the following: a.Tyrosine attached to amino acid site. b.Anticodon for this amino acid in its correct site (codon for tyrosine is UAC) c.What does the actual structure of tRNA look like?
cbse
class12
biology
botany
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Give a schematic labeled diagram of oogenesis.
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
What are the different approaches for biodiversity conservation in India.
cbse
class12
biology
botany
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
List the important characteristics of a population and explain.
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Explain the procedure of ELISA.
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Identify and explain the steps “A”, “B” and “C” in the PCR diagram given below
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Observe the given sequences of nitrogenous base on a DNA fragment and answer the questions:5’-CAGAATTCTTA-3’ 3’-GTCTTAAGAAT-5’ a.Name the restriction enzyme that can recognize this DNA sequence. 5’-CAGAATTCTTA-3’ 3’-GTCTTAAGAAT-5’ a. Name the restriction enzyme that can recognize this DNA sequence.b.Write the sequence after digestion. c.Why are ends generated after digestion called sticky end?
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Microbes can be used to decrease the use of chemical fertilizers and pesticides. Explain how this can be accomplished? or Name any three organic acids and the bacteria that produce them
cbse
class12
biology
botany
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
What is tissue culture? What are the steps involved in tissue culture?
cbse
class12
biology
botany
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
How does humoral immunity work when our body is infected?
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Given below is the schematic representation of Lac operon (a).Identify i and p (b).Name the inducer in this operon and explain its role.
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Name and explain the principle given by the equation $P^2 + 2PQ + Q^2=1$
cbse
class12
biology
zoology
sec-c
asked
Dec 20, 2016
by
meena.p
1
answer
Name the three major types of RNAs, specifying the function of each in the synthesis of polypeptide.
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
What will be the fate of the following structures in angiospermic plants? Ovary wall, ovule, zygote, outer integument, inner integument and primary endosperm nucleus?
cbse
class12
biology
botany
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
Study the table given below and fill in the blanks from A to F
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
How will you measure the population densities in the following cases:a)Fish in a lake b)Tiger census in a national park c)Single huge banyan tree with a large canopy
cbse
class12
biology
botany
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
A selectable marker is used in the selection of recombinants on the basis of their ability to produce colour in the presence of the chromogenic substrate. a) Mention the name of the mechanism involved. b)Which enzyme is involved in the production of the colour?c)How is it advantageous over using antibiotic resistant gene as a selectable marker?
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
Explain the effect of deletion of the gene in an individual. How does gene therapy help in this case?
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
Why is Agarobacterium mediated genetic engineering transformation in plants is considered as a natural genetic engineering?
cbse
class12
biology
botany
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
What is biogas? How is it produced and name the microbes involved in the biogas production?
cbse
class12
biology
botany
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
What measures would you undertake to improve the quality & quantity of milk production?
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
What is immunity? List four barriers that protect the body from the entry of foreign agents. or The outline structure of a drug is given below a)Which group of drugs does this represent? b) What are the modes of consumption of these drugs? c. Name the organ of the body that is affected by the consumption of these drugs.
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
Look at the diagram and answer the following :a)Mention the specific geographical region where these organisms are found.b)Name and explain the phenomenon that has resulted in the evolution of such diverse species in a region. c)Explain giving reasons the existence of placental wolf and Tasmanian wolf sharing the same habitat.
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
There are 64 codons in the genetic code dictionary.a)How many of them code for an amino acid? b)How many aminoacids are coded? c)Which term do you give these codons that do not code for aminoacid?
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
Explain *** determination mechanism in humans. How is it different in birds?
cbse
class12
biology
zoology
sec-c
asked
Dec 19, 2016
by
meena.p
1
answer
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