DNA Structure

DNA structure

Multiple Choice

What do organisms have in common?

• DNA sequence made of A,C,T,G

• DNA sequence is in the same order

• DNA sequence between organisms have nothing in common

• DNA sequence made of A,U,C,T,G

Multiple Choice

What does DNA stand for?

• Ribonucleic acid

• Deoxyribonucleic acid

• Donuts ribosomes acid

Multiple Choice

Where do we find DNA?

• in the nucleus of cells

• in the ribosomes

• in the endoplasmic reticulum

Multiple Choice

What are the four bases found in DNA?

• U, A, T, B

• B, O, A, T

• A, G, C, T

• U, V, W, X

Multiple Choice

What do the dotted lines between the nitrogenous bases (A,T,C,G) represent in the image provided?

• Covalent bonds

• Ionic bonds

• Peptide bonds

• Hydrogen bonds

Multiple Choice

What type of bonding holds the complementary bases together?

• ionic bonding

• covalent bonding

• hydrogen bonding

Labelling

Label the Nucleotide

Drag labels to their correct position on the image

5 Carbon Sugar

Nitrogen Base

Phosphate Group

A <----> T

​

G <----> C​

​

Complimentary Bases

Match

Match the Base Pairs

• Adenine

• Cytosine

• Guanine

• Thymine

Thymine

Guanine

Cytosine

Adenine

• Thymine

• Guanine

• Cytosine

• Adenine

Multiple Choice

what is the complementary strand of this DNA sequence?
TAC CCG ATC AAA GCC

• CGT TTA GCT GGG ATT
• ATG GGC TAG TTT CGG
• GCA AAT CGA CCC TAA
• UAC CCG AUC AAA GCC

DNA is made of 2 Strands.

Outside is made of Sugar & Phosphate.

The inside or rungs are made of 2 bases.

​

DNA has a Double Helix Shape

​How is information stored?

• ​DNA stores information by having a unique pattern of nitrogen bases!

• ​The deoxyribose and phosphate provide structure for the DNA, making it strong!

Multiple Choice

In DNA, what parts codes the information?

• The unique pattern of nitorgen bases.

• The deoxyribose - phosphate backbone

• The nucleotides in a spiral formation

• The protein made in ribosomes

Match

Match the following definition with the word.

• Hydrogen Bonds

• Sugar-Phosphate

• DNA

• RNA

• Nitrogenous Bases

Keeps the double stranded DNA together

Provides the structure of DNA; makes the backbone of DNA molecule

Double stranded genetic code

Single stranded genetic code

Adenine, Thymine, Cytosine, Guanine

• Keeps the double stranded DNA together

• Provides the structure of DNA; makes the backbone of DNA molecule

• Double stranded genetic code

• Single stranded genetic code

• Adenine, Thymine, Cytosine, Guanine