Meiotic division of the secondary oocyte takes place in the:

Totipotency refers to the capacity of a -

In a laboratory population of 80 fruit flies, 8 died in a week, then the death rate of fruit flies is:

Read the following passage carefully.
Restriction enzyme
Restriction enzymes cut the strand of DNA a little away from the center of the palindrome sites, but between the same two bases on the opposite strands. This leaves single stranded portions at the ends. There are overhanging stretches called sticky ends on each strand. These are named so because they form hydrogen bonds with their complementary cut counterparts. This stickiness of the ends facilitates the action of the enzyme DNA ligase. The word palindromes refer to group of letters that forms the same words when read both forward and backward. Restriction endonucleases are used in genetic engineering as molecular scissors.
Which one of the following option is correct about restriction enzyme?

Which codon has dual functions?

Which of the following diseases is caused by a virus?

Match List-l with List-II

List-l (Term)	List-II (Characteristics)
(A) Bt toxin	(I) ADA deficiency
(B) RNAi	(II) Increased food supply
(C) Green revolution	(III) crylAc gene
(D) Gene Therapy	(IV) mRNA silencing

Choose the correct answer from the options given below:

Which of the following statements are true with reference to homology or homologous organs?
(A) Homology indicates common ancestry.
(B) Whale and Cheetah share similarities in the pattern of the bones of the forelimbs.
(C) Vertebrate heart is an example of homologous organs.
(D) Thorn of Bougainvillea and tendrils of cucurbita represent homology.
Choose the correct answer from the options given below:

In a linear programming problem (LPP), the maximum value of the objective function \(Z=2 x+5 y\) subjected to the constraints :
\(\begin{array}{l}2 x+3 y \leq 6 \\2 x+y \leq 4 \\x, y \geq 0\end{array}\)
is

The ratio of lengths of two wires is 2 : 3 and the ratio of their resistivities is 3 : 2. If they have the same resistance then the ratio of their respective diameters is

The point on the curve \(y^2=x\) where the tangent makes \(45^{\circ}\) angle with the \(x\)-axis is:

\(\int \tan ^{-1} \sqrt{x} d x\) equals to : (Here \(C\) is an arbitrary constant)

The electric field at 20 cm from the center of a conducting sphere of radius 2 cm is \( 4.5 \times 10^3 \, \text{N C}^{-1} \). The magnitude of charge on the sphere is: