Which one of the following diseases is non-infectious?

The microbe involved in the production of citric acid is -

Jawless fish probably evolved around:

Which one of the following features of pea plant is not suitable for genetical studies?

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.
Effect of alcohol on cells is -

Select the steps of PCR technique from the following: DU Buddy
A. Primer synthesis
B. Primer annealing
C. DNA denaturation
D. Primer extension
E. DNA cleavage
Choose the correct answer from the options given below:

The 'hilum' represents the junction between:

Match List-I with List-II

List-I	List-II
(A) Output always opposite of input	(I) NOR
(B) Output 1 only when all inputs are 0	(II) NAND
(C) Output 0 only when all inputs are 1	(III) OR
(D) Output 1 when all inputs are 1	(IV) NOT

Choose the correct answer from the options given below:

Match List - I with List - II

List - I	List - II
(A) Charles Darwin	(I) Theory of Populations
(B) Lamarck	(II) Mutation caused speciation
(C) Hugo de Vries	(III) Use and disuse of organs
(D) Thomas Malthus	(IV) H.M.S. Beagle

Choose the correct answer from the options given below :

Mrs Rathna invested Rs. 2 lakh in an enterprise for 5 years. Her compound annual growth rate (CAGR) turned out to be 20.5%. The end balance would be (given \((1.205)^5=2.54\) ):

Read the passage carefully and answer the Questions
Alcohols and phenols are obtained when a hydrogen atom in aliphatic and aromatic hydrocarbons respectively, is replaced by \(OH\) group. These compounds find wide applications in industry as well as in our daily life. You may notice that ordinary spirit is used for polishing wooden furniture which is chiefly a compound containing hydroxyl group. An alcohol contains one or more hydroxyl \((OH)\) group(s) directly attached to carbon atom(s), of an aliphatic system \((CH_3OH)\) while a phenol contains \(OH\) group(s) directly attached to carbon atom(s) of an aromatic system \((C_6H_5OH)\). Alcohols are prepared by the hydration of alkenes, fermentation of glucose, and reduction of carbonyl compounds. Alcohols produce alkenes upon dehydration whereas alkenes on acid catalyzed hydration convert into alcohols.
An alkyl halide can be converted into alcohol through:

The chromosome number in the meiocyte of a housefly is:

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
For balancing the given reaction, value of \(x\) will be.
\(4 FeCr_2 O_4+Na_2 CO_3+7 O_2 \longrightarrow x Na_2 CrO_4+2 Fe_2 O_3+8 CO_2\)