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Nucleic Acids -DNA and RNA

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Page 1: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Nucleic Acids -DNA and RNA

Page 2: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Function:

1)Store and transmit hereditary information

2)Tells cell what proteins to make

Page 3: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Structure

A molecule of DNA or RNA is made up of millions of monomers called Nucleotides.

Each nucleotide consists of:1. Phosphate group2. 5 carbon sugar3. Nitrogenous base

Page 4: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Nucleotides

Phosphate

Pentose

Sugar

Nitrogenous

Base

Page 5: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Nucleotides

A

Adenine

T

Thymine

G

Guanine

C

Cytosine

These 4 are in DNA!

Page 6: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make
Page 7: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

PolymersDNA - Deoxyribonucleic Acid

RNA - Ribonucleic Acid

Sugar - deoxyribose Sugar - ribose

Double stranded - double helix

Single stranded

Stays in the nucleus Travels to cytoplasm

Bases: A, T, C, G Bases: A, U, C, G

Page 8: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

sugar-phosphatechain

bases

THE DOUBLE HELIX

14

Page 9: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

DNA StructureThe phosphate and sugar form the

backbone of the DNA molecule, whereas the bases form the “rungs”.

Backbone held together by covalent bonds.

Bases held together by hydrogen bonds.

Page 10: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Complementary Base Pairing:

Each base will only bond with one other specific base.

Adenine (A)Thymine (T)

Cytosine (C)Guanine (G)

Form a base pair. Remember: Apple Tree

Form a base pair.

Page 11: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

DNA StructureBecause of this complementary base

pairing, the order of the bases in one strand determines the order of the bases in the other strand.

Page 12: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

PO4

PO4

PO4

thymine

PO4

PO4

PO4

PO4

adenine

cytosine

PO4

guanine

11

Page 13: Nucleic Acids - DNA and RNA. Function: 1)Store and transmit hereditary information 2)Tells cell what proteins to make

Introduction to DNA

http://learn.genetics.utah.edu/content/molecules/dna/


Nucleic Acids Organic molecules to store genetic information and transmit genetic information for future generations DNA and RNA

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