Genetic code

Question 1

What is the order of bases called?

Answer 1

The order of bases is called the genetic code which consists of triple of bases, with each of triplet of bases coding for a particular amino acid known as a codon.

Question 2

What are the amino acids joined together by?

Answer 2

A peptide bonds and form a polypeptide chain.

Question 3

What is a gene?

Answer 3

A gene is a sequence of bases on a DNA molecule coding for a sequence of amino acids in a polypeptide chain.

Question 4

What is the location of a gene called?

Answer 4

Locus

Question 5

Are all genome codes proteins?

Answer 5

All genome codes arent proteins - the non coding regions are called introns and the coding regions are called exons.

Question 6

How many nucleotide bases code for 20 different amino acids?

Answer 6

four

Question 7

What is the meaning of genetic code being non-overlapping?

Answer 7

Meaning the triplet is only read once and the triplets don’t share any bases.

Question 8

What does it mean by the genetic code is degenerate?

Answer 8

More than the triplet codes for the same amino acid reduces the mutations which are mistakes in the base sequence such as base deletion, insertion, or substitution.

Question 9

What does a change in the base sequence of DNA do?

Answer 9

It alters the amino acid sequence and the protein therefore it can have various effects.

Question 10

What do gene codes contain?

Answer 10

Start and stop codons.