List of practice Questions

The relationship between any N-length sequence x[n] and its corresponding N-point discrete Fourier transform X[k] is defined as
X[k] = F(x[n]}. 
Another sequence y[n] is formed as below 
y[n] = F F{F{F{F{x[n]}}}}. 
For the sequence x[n] = {1, 2, 1, 3}, the value of Y[0] is___.

Describe any three impacts of globalization on Indian agriculture.

For given reaction: 

‘P’ is

Consider the circuit shown in the figure. The potential difference between points A and B is: \includegraphics[width=0.4\linewidth]{872image.png}

A plano-convex lens of focal length $16 \, \text{cm$ is made of a material of refractive index $1.4$. Calculate the radius of the curved surface of the lens.}

As per the URDPFI Guidelines 2015, match the type of educational facilities in Group-I with the corresponding minimum population to be served per facility in Group-II.

Group I	Group II
(P)   Integrated school	(1) 4,000
(Q)    Senior secondary school	(2) 2,500
(R)    College	(3) 90,000
(S)    Primary school	(4) 1,25,000
	(5) 7,500

Amanda from the poem 'Amanda' is a teenager like Anne Frank and lives in her fantasy world whereas Anne is a chatter box. What conversation will Anne Frank have with Amanda about different perspectives of life? Write your answer in about 120 words.

We perceive a person’s face as a whole, and not as a collection of eyes, nose, mouth, etc. A face therefore is an example of:

In the chapter 'A Baker from Goa' the narrator talks about his childhood in Goa and his fond memories. In about 120 words write a presentation draft comparing the childhood of the narrator in 'A Baker from Goa' to that of Nelson Mandela.
You may begin this way:
Childhood memories remind us of the days gone by.....
Reference: A Baker from Goa and Nelson Mandela: Long Walk

The portion of transmembrane proteins that cross the lipid bilayer are usually:

Match List I with List II:

List I (Enzyme)	List II (Function)
(A) Cytochrome oxidase	(I) Electron transport system
(B) Topoisomerases	(II) Change linking number
(C) Cohesins	(III) DNA Replication
(D) PCNA	(IV) Cell cycle

Choose the correct answer from the options given below:

Which of the following enzyme is inhibited by citrate in Kreb's cycle?

Why does the presence of proline destabilize α-helix?
(A) Proline residue introduces a destabilizing kink in the α-helix
(B) In proline, the nitrogen atom is a part of a rigid ring, and rotation about N-C bond is not possible
(C) The nitrogen atom of a proline residue in a peptide linkage has no substituent hydrogen to participate in hydrogen bonds with other residues
(D) Proline residue works as a helix linker
Choose the correct answer from the options given below:

Which of the following are components of lipid rafts in plasma membrane?
(A) Cholesterol
(B) Sphingolipids
(C) Glycolipids
(D) Phospholipids
Choose the correct answer from the options given below:

Which of the following enzyme is defective in galactosemia—a fatal genetic disorder in infants?

Match List I with List II:

List I (Vitamin)	List II (Disorder)
(A) Vitamin-A	(I) Night blindness
(B) Vitamin-D	(II) Scurvy
(C) Vitamin-C	(III) Fat-soluble vitamin
(D) Vitamin-K	(IV) Blood clotting

Choose the correct answer from the options given below:

Identify the correct sequence of the given intermediates formed during glycolysis:
(A) Fructose 1,6-biphosphate
(B) Fructose 6 phosphate
(C) Lactate
(D) Phosphoenolpyruvate
Choose the correct answer from the options given below:

Identify the correct sequence of the given enzymes involved in the TCA cycle:
(A) Aconitase
(B) Fumarase
(C) Malate dehydrogenase
(D) α-ketoglutarate dehydrogenase
Choose the correct answer from the options given below:

Which of the following is not a fluorescence dye?

The technique used to identify the specific DNA in bacterial colonies is:

Which metal is used for electron beam generation in scanning electron microscopy?

What is the role of sodium dodecyl sulfate (SDS) in protein electrophoresis?
(A) Add net negative charge to the protein
(B) Separate lipids on the basis of their molecular weight
(C) Modify native conformation of a protein
(D) Allows direct destaining of the proteins
Choose the correct answer from the options given below:

Isoelectric focusing allows separation of the proteins according to their:

Match List I with List II:

List I	List II
(A) Western Blotting	(II) Protein identification
(B) Southern Blotting	(I) DNA identification
(C) Northern Blotting	(IV) RNA identification
(D) Yeast two-hybrid system	(III) Protein-protein interaction

Choose the correct answer from the options given below: