The pioneer species in primary succession in water is :

Alcohol is a depressant, which means that even small amounts of alcohol slow down the actions of parts of the brain, so alcohol lengthens the time you take to respond to a stimulus.
Different people react differently to alcohol. In some people, it increase their feelings of aggression, and releases their inhibitions so that they are more likely to be violent or commit other crimes.
An alcoholic needs to drink quite large quantities of alcohol regularly. This causes many parts of the body to be damaged, because alcohol is poisonous to cells. Probably, there are many factors which decide whether or not a person becomes alcoholic. Over a long period of time, it can cause loss of memory and confusion. One way in which the damage is done is that alcohol in the body fluids draws water out of cells by osmosis.
Identify the measure which is not useful for prevention and control of alcohol abuse among adolescents.

\((p+q)^2=p^2+2 p q+q^2=1\) represents Hardy Weinberg equation. It is used in:

The experimental verification of the chromosomal theory of inheritance was given by

The Medical Termination of Pregnancy (Amendment) Act, 2017 was enacted by the government of India with the intension of __________.

Read the paragraph given below and answer the question. Insulin used for diabetes was earlier extracted from slaughtered cattle and pigs. Insulin from an animal source, though caused some patients to develop allergy or other type of reactions. Insulin consists of two short polypeptide chains: chain A and chain B, that are linked bridges. In mammals, including human, insulin is synthesised as a pro-hormone. Patient with diabetes have:

Identify the incorrect statement about the genetic modification.

In the species-area relationship equation, log S = log C + Z log A, 'Z' denotes -

Points of discontinuity of the greatest integer function \(f(x)=\lfloor x\rfloor\), where \(\lfloor x\rfloor\) denotes integer less than or equal to \(x\), are

Arrange the following steps of gel electrophoresis in correct sequence
A. Staining with ethidium bromide.
B. Loading of DNA fragments on agarose gel.
C. Separation of DNA by moving them, towards anode under electric field.
D. Visualising by exposure to UV radiations.
Choose the correct answer from the options given below:

In a compound microscope, the distance between objective lens and eye lens is always:

Which of the following compounds can be used as antifreeze in automobile radiators?

Two solenoids of the same length and the same cross-sectional area have 400 turns and 250 turns, respectively. The ratio of self-inductance of the two solenoids, respectively, is