Free Printable Chapter 7

Worksheets

Chapter 7 Total questions: 10

Worksheet time: 7mins

Name

Class

Date

Where do mutations occur?

DNA and RNA

DNA

RNA

mRNA and tRNA

Point mutation involves

deletion

insertion

duplication

changes in single base pair

Why are insertion and deletion mutations so harmful?

They change all of the codons from the mutation on down the line, which changes the amino acid sequence

They insert things that an organism doesn't need.

They often delete things that organisms need.

Insertion and deletions are not any more harmful than substitution mutations.

A type of substitution in which one amino acid changes is called

Nonsense

Missense

Silent

all of the above

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

Missense

Nonsense

Silent

Deletion

When can a mutation be passed on to offspring?

only when the mutation is present during or occurs during mitosis

only when the mutation is present during or occurs during meiosis

when the mutation occurs during mitosis or meiosis

when the mutation occurs in somatic cells

Inversion

When a segment of a chromosome breaks off.

When a segment of a chromosome breaks off, flips, and reattaches.

When a segment of a chromosome is copied or doubles.

When a segment of a chromosome breaks and attaches to a non homologous chromosome.

When entire chromosomes don't separate evenly during meiosis.

Nondisjunction

When a segment of a chromosome breaks off.

When a segment of a chromosome breaks off, flips, and reattaches.

When a segment of a chromosome is copied or doubles.

When a segment of a chromosome breaks and attaches to a non homologous chromosome.

When entire chromosomes don't separate evenly during meiosis.

Trisomy 21 means you have what?

Three copies of chromosome 21

Twenty one copies of chromosome 3

Three omies and 21 means

Two copies of chromosome 21

10.

What type of karyotype is shown here?

Male with Turner Syndrome

Male with Klinefelter Syndrome

Female with Down Syndrome

Female with Klinefelter Syndrome

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Chapter 7

Total questions: 10

Worksheet time: 7mins

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