2.6 Structures of DNA and RNA

Question 1

Deoxyribonucleic acid(DNA)

Answer 1

Function:

DNA contains the instructions needed for an organism to develop, survive and reproduce.

Question 2

Ribonucleic acid(RNA)

Answer 2

Function:

to convert the information stored in DNA into proteins.

Question 3

Nitrogenous base(Cytosine)

Answer 3

Structural formular: (C4H5N3O)

Function:

The heredity-controlling components of the living cells as well as coenzymes.

Question 4

Nitrogenous base(Guanine )

Answer 4

Structural formular: (C5H5N5O)

Function:

To power chemical reaction and involved in signaling the cell.

Question 5

Nitrogenous base(Adenine)

Answer 5

Structural formular:(C5H5N5)

Function:

Building DNA and RNA ,as well as storing energy.

Question 6

Nitrogenous base(Thymine)

Answer 6

Structural formular:(C5H6N2O2)

Function:
Encodes the cells genetic instruction.

Question 7

Pentos suger

Answer 7

Function:
confirms whether the polynucleotide chain is RNA or DNA.

To main types:

• Deoxyribose
• Ribose

Question 8

Complementary-based pairing

Answer 8

Adinine- Thymine
and
Cytosine -Guanine