Mutations and DNA

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution
• Deletion
• Insertion
• Inversion

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

• deletion
• insertion
• silent
• transverse

Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA

• no mutation
• substitution
• insertion
• deletion

Original: A A U U G G C C
Mutated: A U U U G G C C
What kind of mutation occurred?

• Substitution
• Addition
• Deletion
• Frameshift

What is a Gene?

• A segment of RNA that encodes for a protein
• A chromosome
• A segment of DNA that encodes for a protein
• Your genome

Adenine (A) bonds with ______________.

• Guanine (G)

• Thymine (T)

• Cytosine (C)

• Adenine (A)

What is the job of ribosomes?

• make proteins

• store energy

• create covalent bonds

• create hydrogen bonds

If we think of DNA as a ladder, which parts are the steps of the ladder?

• the nitrogen base pairs

• the phosphate-sugar backbone

• the genes

What is the matching nitrogen base sequence for the gene below?

A-

T-

C-

• T-

  G-

  T-

• G-

  C-

  A-

• T-

  A-

  G-

Which organelle is DNA usually found in?

• cell membrane

• vacuole

• chloroplast

• nucleus