AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is part of the description of protein?
A
a folded chain of amino acids
B
a folded chain of carbohydrates
C
a branched chain of fatty acids
D
a branched chain of nucleic acids
Explanation: 

Detailed explanation-1: -When connected together by a series of peptide bonds, amino acids form a polypeptide, another word for protein.

Detailed explanation-2: -When folding, two types of structures usually form first. Some regions of the protein chain coil up into slinky-like formations called “alpha helices, ” while other regions fold into zigzag patterns called “beta sheets, ” which resemble the folds of a paper fan.

Detailed explanation-3: -Proteins fold into stable three‐dimensional shapes, or conformations, that are determined by their amino acid sequence. The complete structure of a protein can be described at four different levels of complexity: primary, secondary, tertiary, and quaternary structure.

Detailed explanation-4: -Proteins that facilitate the folding of other proteins are called molecular chaperones. The term “chaperone” was first used by Ron Laskey and his colleagues to describe a protein (nucleoplasmin) that is required for the assembly of nucleosomes from histones and DNA.

There is 1 question to complete.