Mutations Quiz

A deletion occurs when

• one of the nucleotides is removed from a gene

• two of the nucleotides appears in a gene

• one nucleotide replaces another nucleotide

• a section of a chromosome is reattached to another chromosome

frame shift (when DNA codes shift) only occurs in

• gene mutations such as substitution

• chromosome mutations such as duplication

• gene mutations such as insertion or deletion

• non-disjunction

Counting the number of nucleotides will alert you to __________ or ________ mutations, but not _______________

• deletion or insertion, substitution

• substitution or deletion, insertion

• insertion or substitution, deletion

• substitution only, but not deletion or insertion

Gene mutations may result in

• an incorrect protein being produced

• a reduced number of chromosomes in the future cell

• the length of the protein may increase

• homologous chromosomes may not pair

Changes in DNA sequences that affect genetic information are known as

• Replications

• Mutations

• Transformations

• Translations

Tags

NGSS.HS-LS3-2

An insertion mutation on the DNA sequence CAGTAT could look like?

• CAGAT

• CTGAAT

• CAGATAT

• CAGCAG

True or False: Mutations are always negative

• True

• False

A substitution mutation for this DNA sequence ATGCAG could look like

• ATCGAC

• ATCAC

• ATGCAGC

• AAGCAG

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

Tags

NGSS.HS-LS3-2

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

• Substitution
• Deletion
• Insertion
• Inversion

Tags

NGSS.HS-LS3-2