Chromosomal Mutations Lesson

Multiple Choice

What is nondisjunction?

• A chromosomal mutation involving the loss of a segment of a chromosome

• A condition in which an individual has an extra copy of a specific chromosome

• A genetic disorder characterized by intellectual disability and distinct facial features

• A genetic event during cell division when chromosomes fail to separate properly

Multiple Choice

What is trisomy?

• A chromosomal mutation involving the loss of a segment of a chromosome

• A condition in which an individual has an extra copy of a specific chromosome

• A genetic disorder characterized by intellectual disability and distinct facial features

• A genetic event during cell division when chromosomes fail to separate properly

Multiple Choice

What is monosomy?

• A condition in which an individual has an extra copy of a specific chromosome

• A genetic disorder characterized by intellectual disability and distinct facial features

• A genetic event during cell division when chromosomes fail to separate properly

• A condition in which an individual is missing one copy of a specific chromosome

Multiple Choice

What is Down syndrome?

• A genetic event during cell division when chromosomes fail to separate properly

• A genetic disorder characterized by intellectual disability and distinct facial features

• A condition in which an individual has an extra copy of a specific chromosome

• A chromosomal mutation involving the loss of a segment of a chromosome

Multiple Choice

What is Turner syndrome?

• A chromosomal mutation involving the loss of a segment of a chromosome

• A genetic disorder in which an individual is born with a single X chromosome

• A genetic disorder characterized by intellectual disability and distinct facial features

• A condition in which an individual has an extra copy of a specific chromosome

Multiple Choice

What is Klinefelter syndrome?

• A genetic disorder characterized by intellectual disability and distinct facial features

• A genetic disorder in which an individual is born with a single X chromosome

• A chromosomal mutation involving the loss of a segment of a chromosome

• A genetic disorder characterized by the presence of an extra X chromosome in males

Multiple Choice

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

Multiple Choice

By looking at the chromosomes how can you tell that this person is biologically female?

• Because there are two X chromosomes

• Because there are more chromosomes than in a male

Multiple Choice

This is known as Edwards Syndrome, can you identify the chromosomal mutation?

• Chromosomes 1 and 2 are bent

• There is no Y chromosome

• This persons chromosomes are normal

• There are 3 of chromosomes 18

Multiple Choice

______________________________________ is a type of chromosomal mutation when part of the chromosome breaks off and attaches to another chromosome.

• duplication

• translocation

• subtraction

• deletion

Multiple Choice

This type of chromosomal mutation produces an extra copy of all or part of the chromosome:

• multiplication

• replication

• duplication

• inversion

Multiple Choice

If part of the chromosome is turned around in the opposite direction this is called:

• inversion

• translocation

• deletion

• duplication

Multiple Choice

In some cases this condition of having extra sets of chromosomes can be beneficial, such as in certain plants that are stronger and larger as a result.

• polyploidy

• point mutation

• frameshift mutation

• inversion

Multiple Choice

Mutations can be beneficial because they increase genetic _____________________ and can make the individual and species more likely to survive.

• diseases

• complications

• disorders

• diversity

Explanation Slide...

Turner syndrome is a genetic disorder where an individual is born with a single X chromosome, making it the correct choice.