The polluting potential of waste water is determined by:

Which of the following is a hormone releasing IUD?

A single stranded DNA or RNA tagged with a radioactive probe is allowed to hybridize to its complementary DNA in a clone of cells followed by detection using __________.

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.
Palindromes are:

Arrange the following in order of their appearance, if a sperm starts travelling from testicular lobules?
(A) Urethra
(B) Vas deferens
(C) Urethral meatus
(D) Vasa efferentia
Choose the correct answer from the options given below:

The untranslated regions are present on an mRNA at:

Which one of the following statements is incorrect about ecological
pyramids?

If \(\left|\begin{array}{ll}2 & 4 \\ 5 & 1\end{array}\right|=\left|\begin{array}{cc}2 x & 4 \\ 6 & x\end{array}\right|\), then \(x\) is equal to:

In an a.c. circuit, a resistor, a capacitor and an inductor are connected in series, in which \( X_C = X_L = R \). The impedance of this circuit will be

The photoelectric current is directly proportional to the number of photo electrons emitted per second. This implies that

Identify the solution which is nearly ideal in behaviour

If the money is worth \(8 \%\) per annum compounded semi-annually, then the present value of a sequence of payments of ₹ 1,000 made at the end of every 6 months and continuing forever, is:

A point charge is kept at the centre of a metallic insulated spherical shell. Then :