Mutations and DNA Technology

Mutations:

• are permanent changes in the DNA sequence or structure
• produce allelic variation
• are more likely to be harmful than beneficial
• all of the above

Are all mutations bad?

• Yes
• No

A mutation that does NOT alter the protein production is called a 

• deletion mutation
• inversion mutation
• silent mutation
• transverse mutation

Original: ATC CAT
Mutation: ATC GCAT
What mutation occurred?

• deletion
• insertion
• silent
• transverse

Original DNA: CAT GAT
New DNA: CAT AT
What mutation occurred?

• deletion
• substitution 
• tranverse
• insertion

Gene: ABCDEF
Mutation: ACEFCD
What mutation occurred?

• deletion
• substitution
• inversion
• insertion

Gene: ABC
New Gene: BBC
What mutation occurred?

• deletion
• insertion
• substitution
• transversion

What causes mutations?

• Mistakes in replication or environmental substances
• The amino acids
• Passed down by genetics
• It's how your born

Tags

NGSS.HS-LS3-2

Down's syndrome is caused by a trisomy of chromosome ____.

• 21
• 22
• 14
• 19

How do scientists cut DNA into smaller strands?

• restriction enzymes
• scissors
• ligase
• agarose