MUTATIONS REVIEW - BIO I

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

• Substitution
• Deletion
• Insertion
• Frameshift 

What type of chromosomal mutation has occurred?

• substitution
• insertion
• deletion
• nondisjunction

Which Karyotype displays a female with Down syndrome?

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

• Substitution
• Deletion
• Insertion
• Inversion

The rearrangement of whole blocks of genes.Involve changes to a triplet resulting in a different amino acid.

• translocation

• gene mutation

• deletion

• missive substitution

A mutation is defined as:

• A change in the cell's structure

• Anything that changes in an embryo

• Any change in the physical features of a human

• A change in the DNA sequence

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

• Substitution
• Deletion
• Insertion
• Frameshift 

Identify the DELETION mutation form the following: 
ATG CCA AAT

• ATG TCA AAT
• ATG CCT AAA T
• ATC CA  AT
• ATG CCA AAT

Identify the SUBSTITUTION mutation form the following: 
ATG CCA AAT

• ATG TCA AAT
• ATG CCT AAA T
• ATC CA  AT
• ATG CCA AAT

The survival of a species depends on its ability to adapt to changes in the environment. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment?

• Mutations are a source of variation in the species
• Mutations are the cause of disease in the species
• Mutations are not harmful when they occur in somatic cells
• Mutations are always passed on to subsequent generations