Which of the following is not correct about the Coils and Loops?

The loops are often characterized by sharp turns or hairpin-like structures

If the connecting regions are completely irregular, they belong to random coils

Which of the following is not correct about the -sheet?

-Strands are stabilized by hydrogen bonds between residues of adjacent strands

A -sheet is a fully extended configuration built up from several spatially adjacent regions of a polypeptide chain

Each region involved in forming the -sheet is a -strand

The -strand conformation is pleated with main chain backbone zigzagging and side chains positioned on same sides of the sheet

-Strands are stabilized by hydrogen bonds between residues of adjacent strands

Which of the following is not correct about the -Helices?

Nearly all known -helices are right handed, exhibiting a rightward spiral form

An -helix has a main chain backbone conformation that resembles a corkscrew

Nearly all known -helices are right handed, exhibiting a leftward spiral form

Nearly all known -helices are right handed, exhibiting a rightward spiral form

In right handed helix, there are 3.6 amino acids per helical turn

Explore topic-wise MCQs in Bioinformatics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.	Globular proteins are usually insoluble.
A.	True
B.	False
Answer» C.

Discussion

2.	Which of the following is not correct about the Coils and Loops?
A.	They are regular structures
B.	They are irregular structures
C.	The loops are often characterized by sharp turns or hairpin-like structures
D.	If the connecting regions are completely irregular, they belong to random coils
Answer» B. They are irregular structures

Discussion

3.	Which of the following is not correct about the -sheet?
A.	A -sheet is a fully extended configuration built up from several spatially adjacent regions of a polypeptide chain
B.	Each region involved in forming the -sheet is a -strand
C.	The -strand conformation is pleated with main chain backbone zigzagging and side chains positioned on same sides of the sheet
D.	-Strands are stabilized by hydrogen bonds between residues of adjacent strands
Answer» D. -Strands are stabilized by hydrogen bonds between residues of adjacent strands

Discussion

4.	Which of the following is not correct about the -Helices?
A.	An -helix has a main chain backbone conformation that resembles a corkscrew
B.	Nearly all known -helices are right handed, exhibiting a leftward spiral form
C.	Nearly all known -helices are right handed, exhibiting a rightward spiral form
D.	In right handed helix, there are 3.6 amino acids per helical turn
Answer» C. Nearly all known -helices are right handed, exhibiting a rightward spiral form

Discussion

5.	The building blocks of proteins are ______ naturally occurring amino acids, small molecules that contain a free amino group (NH₂) and a free carboxyl group (COOH).
A.	ten
B.	twenty
C.	nine
D.	nineteen
Answer» C. nine

Discussion

Explore topic-wise MCQs in Bioinformatics.

Globular proteins are usually insoluble.

Which of the following is not correct about the Coils and Loops?

Which of the following is not correct about the -sheet?

Which of the following is not correct about the -Helices?

The building blocks of proteins are ______ naturally occurring amino acids, small molecules that contain a free amino group (NH2) and a free carboxyl group (COOH).

The building blocks of proteins are ______ naturally occurring amino acids, small molecules that contain a free amino group (NH₂) and a free carboxyl group (COOH).