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Recent questions tagged sec-b
Questions
Draw a labeled diagram of an antibody molecule
cbse
class12
biology
zoology
sec-b
asked
Dec 19, 2016
by
meena.p
1
answer
Differentiate between convergent and divergent evolution
cbse
class12
biology
zoology
sec-b
asked
Dec 19, 2016
by
meena.p
1
answer
What is inter specific hybridization? Give an example. or Differentiate between inbreeding and outbreeding in animals
cbse
class12
biology
zoology
sec-b
asked
Dec 19, 2016
by
meena.p
1
answer
State two functions of human placenta.
cbse
class12
biology
zoology
sec-b
asked
Dec 19, 2016
by
meena.p
1
answer
Give any two examples of defense mechanism in plants against herbivory.OR What are the four levels of biological organization with which ecology basically deals with?
cbse
class12
biology
botany
sec-b
asked
Dec 8, 2016
by
meena.p
1
answer
What is germplasm? Why is it necessary to have a germplasm collection?
cbse
class12
biology
zoology
sec-b
asked
Dec 8, 2016
by
meena.p
1
answer
What are auto immune diseases? Give two examples.
cbse
class12
biology
botany
sec-b
asked
Dec 8, 2016
by
meena.p
1
answer
Why is it essential that tRNA binds to both aminoacids and mRNA during protein synthesis?
cbse
class12
biology
zoology
sec-b
asked
Dec 8, 2016
by
meena.p
1
answer
Why are cleistogamous flowers invariably autogamous?
cbse
class12
biology
botany
sec-b
asked
Dec 8, 2016
by
meena.p
1
answer
Why is productivity of coral reef maximum?
cbse
class12
biology
botany
sec-b
asked
Dec 7, 2016
by
meena.p
1
answer
How does a small amount of curd added to milk convert it into curd? or Name the alcoholic drinks produced in the following ways: By distillation and without distillation.
cbse
class12
biology
zoology
sec-b
asked
Dec 7, 2016
by
meena.p
1
answer
What are allergens? How do they cause inflammatory response in human body?
cbse
class12
biology
zoology
sec-b
asked
Dec 7, 2016
by
meena.p
1
answer
Give chromosomal constitution and related *** in each of the following: a) Turner’s syndrome b) Klinefelter’s syndrome.
cbse
class12
biology
zoology
sec-b
asked
Dec 7, 2016
by
meena.p
1
answer
Why pollen grains can remain well preserved in fossils?
cbse
class12
biology
botany
sec-b
asked
Dec 7, 2016
by
meena.p
1
answer
Study the pie-diagram and answer the questions which follows : What do A, B, C and D represent in these diagrams.
cbse
class12
biology
botany
sec-b
asked
Dec 6, 2016
by
meena.p
1
answer
Why are cyanobacteria considered useful in paddy plants?
cbse
class12
biology
botany
sec-b
asked
Dec 6, 2016
by
meena.p
1
answer
Enumerate two properties of cancer cells that distinguish them from normal cell.
cbse
class12
biology
zoology
sec-b
asked
Dec 6, 2016
by
meena.p
1
answer
Why do sons of a haemophilic father never suffer from this trait?
cbse
class12
biology
zoology
sec-b
asked
Dec 6, 2016
by
meena.p
1
answer
Mention different stages of sexual reproduction.Differentiate between geitonogamy and xenogamy.
cbse
class12
biology
zoology
sec-b
asked
Dec 6, 2016
by
meena.p
1
answer
Expand MOET. How is it carried out?
cbse
class12
biology
zoology
sec-b
asked
Dec 2, 2016
by
meena.p
1
answer
Why is secondary succession faster than primary succession?
cbse
class12
biology
botany
sec-b
asked
Dec 2, 2016
by
meena.p
1
answer
Differentiate between active and passive immunity.
cbse
class12
biology
zoology
sec-b
asked
Dec 2, 2016
by
meena.p
1
answer
The map distance between a certain organisms genes A and B is 4 units, between B and C is 5 units and between C and D is 8 units. Which one of the gene pair will show more recombination frequency? Give reason. and Mention four reasons why Drosophila was chosen by Morgan for his experiments in genetics.
cbse
class12
biology
zoology
sec-b
asked
Dec 2, 2016
by
meena.p
1
answer
Define ‘oestrous’ and ‘menstrual cycle’.
cbse
class12
biology
zoology
sec-b
asked
Dec 2, 2016
by
meena.p
1
answer
A coin is tossed 6 times. What Is the probability that tail appears an odd no of times ?
cbse
class12
maths
sec-b
ch13
asked
Nov 30, 2016
by
priyanka.c
1
answer
“Lichens are considered good examples of obligate mutualism”. Comment.
cbse
class12
biology
zoology
sec-b
asked
Nov 30, 2016
by
meena.p
1
answer
What are statins? Where are they formed from?
cbse
class12
biology
zoology
sec-b
asked
Nov 30, 2016
by
meena.p
1
answer
Differentiate between two types of tumours.
cbse
class12
biology
zoology
sec-b
asked
Nov 30, 2016
by
meena.p
1
answer
Give two reasons why both the strands of DNA are not copied during DNA replication.
cbse
class12
biology
zoology
sec-b
asked
Nov 30, 2016
by
meena.p
1
answer
Draw the structure of the microsporangium with a neatly labeled diagram.
cbse
class12
biology
zoology
sec-b
asked
Nov 30, 2016
by
meena.p
1
answer
If $\theta$ be the angle between two unit vectors. Evaluate $\sin \frac{\theta}{2}$
cbse
class12
maths
sec-b
ch10
asked
Nov 25, 2016
by
priyanka.c
1
answer
Form the differential equation for the family of curves $y = a \sin(x+b)$ where $a \;and \; b$ are parameters
cbse
class12
maths
sec-b
ch9
asked
Nov 25, 2016
by
priyanka.c
1
answer
Evaluate : $\begin{align*}\int\limits_{-1}^1 log (\frac{2+x}{2-x}) dx \end{align*}$
cbse
class12
maths
sec-b
ch7
asked
Nov 25, 2016
by
priyanka.c
1
answer
Find the approximate value of $f'(3.02)$ where $f(x) = 3x^2+5x+3$
cbse
class12
maths
ch6
sec-b
asked
Nov 25, 2016
by
priyanka.c
1
answer
Which of the following does not react with oxygen directly ? why ? $Zn,Ti,Pt,Fe$
cbse
class12
chemistry
sec-b
ch-7
p-block-elements
asked
Nov 24, 2016
by
meena.p
1
answer
Which of the following pair will have greater conduction and why ? (a) Copper wire at $25^{\circ}C$ and copper wire at $50^{\circ}C$. (b) $0.1\; M$ acetic acid solution or $1\;M$ acetic acid solution?
cbse
class12
chemistry
sec-b
ch-3
electrochemistry
asked
Nov 24, 2016
by
meena.p
1
answer
Which colligative properly is preferred for the molar mass determination of macro molecules ? why ?
cbse
class12
chemistry
sec-b
ch-2
solutions
asked
Nov 24, 2016
by
meena.p
1
answer
The total cost C(x) in rupees associated with the production of x units of an item is given by $ C(x) = 0.007 x^3 - 0.003 x^2 + 15x + 4000$. Find the marginal cost when 10 units are produced.
cbse
class12
maths
ch6
sec-b
asked
Nov 23, 2016
by
priyanka.c
1
answer
Find the value of x if $\begin{bmatrix} x & -5 & -1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 2 \\ 0 & 2 & 1 \\ 2& 0 & 3 \end{bmatrix} \begin{bmatrix} x \\ 4 \\ 1 \end{bmatrix} = 0$
cbse
class12
maths
ch3
sec-b
asked
Nov 23, 2016
by
priyanka.c
1
answer
Let A = {1, 2}. Find the number of possible binary operations defined on A.
cbse
class12
maths
ch1
sec-b
asked
Nov 23, 2016
by
priyanka.c
1
answer
Analysis shows that nickel oxide has the formula $Ni0_{98}O_{1.00}$. What fractions of nickel exist as $Ni^{2+}$ and $Ni_{3+}$ ions?
cbse
class12
chemistry
sec-b
ch-1
states-of-matter-solid-state
asked
Nov 23, 2016
by
meena.p
1
answer
Give reason (a) window glass of old building look milky. (b) window glass of old building is thick at bottom (c) $Cacl_2$ will introduced schotlky defect if added to $Agcl$ crystal
cbse
class12
chemistry
sec-b
ch-1
states-of-matter-solid-state
asked
Nov 23, 2016
by
meena.p
1
answer
Give reasons for the following : (i) Nitric oxide become brown when released in air . (ii) Ammonia acts as a ligand.
cbse
class12
chemistry
sec-b
ch-7
p-block-elements
asked
Nov 21, 2016
by
meena.p
1
answer
How is ferromagnetism different from paramagnetism
cbse
class12
chemistry
sec-b
ch-1
states-of-matter-solid-state
asked
Nov 21, 2016
by
meena.p
1
answer
The conductivity of $0.20\;M$ solution of KCl at $298\;K$ is $0.0248 \;Scm^{-1}$ Calculate its molar conductivity
cbse
class12
chemistry
sec-b
ch-3
electrochemistry
asked
Nov 21, 2016
by
meena.p
1
answer
Why does the electrical conductivity of semiconductor increase in temperature ?
cbse
class12
chemistry
sec-b
ch-1
states-of-matter-solid-state
asked
Nov 21, 2016
by
meena.p
1
answer
How does sprinkling of salt help in clearing the snow covered roads in hilly areas? Explain the phenomenon involved in the process.
cbse
class12
chemistry
sec-b
ch-2
solutions
asked
Nov 21, 2016
by
meena.p
1
answer
A die which is marked with 1, 2, 3 in red and 4, 5, 6 in green is tossed. Let A be the event 'number is even' and B be the event 'number is red' and Are A and B independent?
cbse
class12
maths
ch13
sec-b
boardexam
2017
asked
Nov 17, 2016
by
priyanka.c
1
answer
State a reason for each of the following solutions : (i) $CO^{2+}$ is easily oxidized to $CO^{3+}$ in the presence of a strong ligand (ii) $CO$ is a stronger complexing regent than $NH_3$ (iii) The molecular shape of $Ni(CO)_4$ is not the same as that of $[Ni(CN)_4]^{2-}$
cbse
class12
chemistry
sec-b
ch-9
coordinate-compounds
asked
Nov 16, 2016
by
meena.p
1
answer
(i) Why Grignard reagents should be prepared under anhydrous conditions. (ii) Why $C_6H_5CHClCH_3$ is hydrolysed more easily with $KOH$ than $C_6H_5CH_2Cl$
cbse
class12
chemistry
sec-b
ch-10
haloalkanes-and-haloarenes
asked
Nov 15, 2016
by
meena.p
1
answer
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