Paleontological evidence for evolution refers to.

Miller's experiment provided evidence for:

In a country, at any time, the population has the same number of youngs and mature ones. What type of growth does it reflect?

The stages of cell cycle during germ cell formation is-
(A). Meiosis I anaphase
(B). Meiosis II anaphase
(C). G1
(D). G2
Choose the correct answer from the options given below:

Which is not the salient feature of human genome project-

Medical termination of pregnancy (MTP) is considered relatively safe -

Match List-l with List-ll

List-l (Organisms)	List-II (Products/Bioactive molecule)
(A) Trichoderma polysporum	(I) Citric acid
(B) Monascus purpureus	(II) Cyclosporin A
(C) Aspergillus niger	(III) Ethanol
(D) Saccharomyces cerevisiae	(IV) Statins

Choose the correct answer from the options given below:

Let \(\vec{a}=2 \hat{i}-\hat{j}, \vec{b}=-4 \hat{j}+\hat{k}\) and \(\vec{c}=\hat{i}+2 \hat{k}\). If \(\vec{d}\) is a vector perpendicular to both \(\vec{a}\) and \(\vec{b}\) such that \(\vec{c} \cdot \vec{d}=34\), then \(|\vec{d}|\) is equal to

For a full wave rectifier, if the input frequency is \(5 0 ~ H z\), the output frequency will be

Read the passage carefully and answer the questions
Replacement of a hydrogen atom in a hydrocarbon by an alkoxy or carboxyl group yields a class of compounds known as ethers. Ethers are classified as symmetrical or unsymmetrical on the basis of groups attached to the oxygen atoms. Diethyl ether, a symmetrical ether, has been widely used as an inhalation anesthetic. Ethers can be prepared by acid catalyzed intermolecular dehydration of alcohols and Williamson's synthesis. Acid catalyzed dehydration of alcohols is not generally preferred as it gives a mixture of elimination and substitution products. In Williamson's synthesis, an alkyl halide is allowed to react with sodium alkoxide. Ethers containing substituted Alkyl groups may also be prepared by this method. The C-O bond in ether is weakly polar and is cleaved under drastic conditions with excess of hydrogen halides. In electrophilic substitution, the alkoxy group deactivates the aromatic ring and directs the incoming group to ortho and para positions.
Which type of ether is anisole ?

If \(c_{i j}\) denotes the cofactor of element \(c_{i j}\) of the matrix \(A=\left[\begin{array}{ccc}1 & 2 & -1 \\ 0 & -3 & 2 \\ 4 & 2 & 3\end{array}\right]\), then the value of \(c_{21} \cdot c_{33}\) is

The area of region bounded by the curve \(y = x^2\) and the line \(y = 4\) is:

A function \(f: R \rightarrow R\) defined by \(f(x)=\frac{x}{x^2+1}\) is (where \(R\) is the set of real numbers) :