AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is NOT part of an amino acid?
A
Phosphate Group
B
Amino Group
C
Carboxyl Group
D
R-Group
Explanation: 

Detailed explanation-1: -Answer and Explanation: The correct option is b. A fatty acid group.. The amino acid structure contains an amine group and a carboxylic group.

Detailed explanation-2: -The amino acids most commonly phosphorylated are serine, threonine, tyrosine in eukaryotes, and also histidine in prokaryotes and plants (though it is now known to be common in humans).

Detailed explanation-3: -There are basically four different classes of amino acids determined by different side chains: (1) non-polar and neutral, (2) polar and neutral, (3) acidic and polar, (4) basic and polar. Principles of Polarity: The greater the electronegativity difference between atoms in a bond, the more polar the bond.

Detailed explanation-4: -The carbon, carboxyl, and amino groups are common to all amino acids, so the R-group is the only unique feature in each amino acid.

There is 1 question to complete.