Retake Exam 7C MUTATIONS

Which statement below BEST matches the type of mutation with the correct description?

• A deletion mutation occurs when part of a DNA sequence is removed, resulting in a frameshift mutation

• A substitution mutation occurs when a section of DNA breaks away from a chromosome and attaches to the chromosome in reversed order

• An insertion mutation occurs when additional genetic material is removed, which results in a silent mutation.

• A substitution mutation occurs when one base pair is replaced by a different base pair, resulting in a frameshift mutation.

Several codons can code for the same amino acid. If the codon CUC is mutated during replication, a change to which of the following mutations would result in a silent mutation?

• CCU

• UUA

• CAG

• UUG

• CUU

Tags

NGSS.HS-LS3-2

An egg cell with a mutation is fertilized. What is the percent chance of the offspring inheriting the mutation? _____%(type only numeral number)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Original DNA: CAGAAT

Mutated DNA: CAGAT = ​ (a)  

Mutated DNA: CAGCAAT = ​ (b)  

Mutated DNA: CAGTAT = ​ (c)  

• Deletion
• Insertion
• Substitution

Tags

NGSS.HS-LS3-2

A genetic sequence undergoes a mutation. The original sequence, the mutated sequence, and a codon chart are shown. 

 How many amino acid changes can be identified from the mutated sequence shown?

Original Sequence: 5' AUG CCG GCG AUU ACA 3'

Mutated Sequence: 5' AUC GCC GGC GAU UAC A 3'

How many amino acid changes can be identified from the mutated sequence shown?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.HS-LS3-2

Which of these is the direct result of an error in the transcription of a DNA nucleotide?

• The nuclear membrane is ruptured

• Amino acids do not bond to tRNA.

• A codon sequence is incorrect.

• Transportation of mRNA does not occur.

Match the following types of DNA mutations.

• substitution

• 
• insertion

• 
• deletion

• 

Tags

NGSS.HS-LS3-2

A type of substitution in which no  amino acids change is called 

• Missense
• Nonsense
• Silent
• Deletion

Tags

NGSS.HS-LS3-2

ATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of a 

• Insertion- Frameshift
• Deletion- Substitution
• Deletion -Frameshift
• All of the above

Early-onset Alzheimer’s disease affects people under the age of 65. Less than five percent of people who are diagnosed with Alzheimer’s disease have this type. Many cases of early-onset Alzheimer’s disease are inherited, a type known as familial Alzheimer’s disease (FAD). Which statement is best supported by this information?

• Deletion of one amino acid causes FAD.

• FAD affects only the genes of middle-aged people.

• Natural selection will continue to reduce the incidence of FAD.

• FAD is the result of a genetic change in gametes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2