Chapter 7 Review

Exam 4 Review
Chapter 7

Draw a model of meiosis that is 2n=4

Describe or Draw the differences in the following terms

Sister chromatid
Homologous chromosome
Synapsis
Chiasma

Recombinant chromosome
Non-recombinant chromosome
Crossing Over
Independent Assortment

Multiple Choice

The ability to reproduce in kind is a property of all living things.

• True

• False

Multiple Choice

Which type of reproduction requires fertilization (sperm and egg to fuse)?

• Binary Fission

• Sexual

• Asexual

• Budding

Multiple Choice

If a cell is described as 2N it is a _________ cell.

• polyploidy

• haploid

• aneuploidy

• diploid

Multiple Choice

If a cell is described as n it is a _______ cell.

• haploid

• diploid

• polyploidy

• aneuploidy

Multiple Choice

Sex cells are known as (sperm and eggs)

• somatic

• gametes

Multiple Choice

Skin, stomach, and nerve cells are known as

• somatic

• gametes

Multiple Choice

Which of the following is NOT an advantage of asexual reproduction?

• no mate needed

• offspring are identical to parents

• genetic variation

• reproduces quickly

Multiple Choice

The Red Queen hypothesis describes all the following except...

• with no variations in the gene pool adaption will take place

• no species can get too far ahead of other species

• every small advantage gives a species an "edge"

• all species coevolve

• species that can't keep up go extinct

Multiple Choice

Before replication, germ cells have how many chromosomes?

• 23

• 46

• 92

Multiple Choice

After replication, germ cells have how many chromatids?

• 23

• 46

• 92

Multiple Choice

After meiosis, gamete cells have how many chromatids?

• 23

• 46

• 92

Multiple Choice

In sexual reproduction where do the chromosomes come from

• all chromosomes come from one parent

• chromosomes are randomly dispersed until the correct number is achieved

• one chromosome comes from each parent

• chromosomes come from sisters

Multiple Choice

Meiosis produces ______ daughter cells that are unique from each other and the parent cell.

• one

• two

• three

• four

Multiple Choice

Mitosis produces ______ daughter cells that are identical to the parent cell.

• one

• two

• three

• four

Fill in the Blanks

Mitosis has how many rounds of division (enter number)?

Fill in the Blanks

Meiosis has how many rounds of division (enter number)?

Multiple Choice

What cell is used to produce gametes?

• skin

• brain

• germ

• gametic

Multiple Choice

Mitosis produces cells that are

• haploid

• diploid

Multiple Choice

Meiosis produces cells that are

• haploid

• diploid

Multiple Choice

Before mitosis or meiosis, what stage must take place?

• Cytokinesis

• Interphase

• Meiosis I

• Meiosis II

Multiple Choice

DNA Replication takes place before both meiosis I and meiosis II.

• True

• False

Multiple Choice

Identify the phase where chromosomes condense, nuclear envelope disappears, spindles form, and crossing over takes place.

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I and Cytokinesis

Multiple Choice

Identify the phase where pairs of homologous chromosomes move to the equator.

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I and Cytokinesis

Multiple Choice

Identify the phase where pairs of homologous chromosomes move away to the opposite parts of the cell.

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I and Cytokinesis

Multiple Choice

Identify the phase where pairs of homologous chromosomes gather at the poles and cytoplasm splits into two cells.

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I and Cytokinesis

Multiple Choice

Identify the phase where spindles form, nucleus disappears, and centrioles move to the poles.

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II and Cytokinesis

Multiple Choice

Identify the phase where sister chromatids line up at the equator.

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II and Cytokinesis

Multiple Choice

Identify the phase where sister chromatids move away to the opposite ends of the cell.

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II and Cytokinesis

Multiple Choice

Identify the phase where nucleus reforms, spindle breaks down, and cytoplasm splits to produce a total of 4 cells.

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II and Cytokinesis

Multiple Choice

Meiosis I is all about separating

• sister chromatids

• chromosomes

• homologous chromosomes

• centrioles

Multiple Choice

Meiosis II is all about separating

• sister chromatids

• chromosomes

• homologous chromosomes

• centrioles

Multiple Choice

Which round of meiosis is similar to mitosis?

• Meiosis I

• Meiosis II

Multiple Choice

Meiosis reduces chromosome number by half. This is why it is referred to as a _________________ process.

• reduction

• difficult

• reductional division

• dividing

Multiple Choice

Crossing over takes place during

• Prophase I

• Metaphase I

• Prophase II

• Metaphase II

Multiple Choice

The point of contact where non-sister chromatids exchange genetic material is known as

• chiasma

• synapsis

• centromere

• kinetochore

Multiple Choice

When homologous chromosomes exchange genetic material they are referred to as ______________ chromosomes.

• changed

• sister chromatids

• non-recombinant

• recombinant

Multiple Choice

When homologous pairs line up in close interaction it is called

• chiasma

• synapsis

• centromere

• kinetochore

Multiple Choice

Some homologous chromosomes exchange genetic material and some do not. When they don't exchange genetic material they are referred to as ______________ chromosomes.

• changed

• sister chromatids

• non-recombinant

• recombinant

Multiple Choice

When homologous chromosomes pairs line up in metaphase I they do so at random. This is known as

• Crossing Over

• Segregation

• Independent Assortment

• Original Orientation

Multiple Select

Select the processes that take place during meiosis that contribute to genetic variation

• independent assortment

• homologous chromosomes separating

• sister chromatids separating

• crossing over

Multiple Select

Independent assortment takes place in

• Metaphase I

• Anaphase I

• Metaphase II

• Anaphase II

Multiple Choice

If an organism gametes contain 4 chromosomes, then how many combinations could be made based on independent assortment?

• 2

• 8

• 16

• 32

Multiple Choice

If an organism diploid cells contain 16 chromosomes, then how many combinations could be made based on independent assortment?

• 16

• 256

• 586

• 65,536

Multiple Choice

X-inactivation can only take place in

• males

• females

Multiple Choice

The X chromosome that undergoes inactivation is known as

• Barr body

• bad X

• inactive X

• active X

Multiple Choice

This refers to the number of chromosomes in a cell

• ploidy

• euploid

• aneuploidy

• polyploidy

Multiple Choice

If an organism has the correct number of chromosomes per cell they are

• ploidy

• euploid

• aneuploidy

• polyploidy

Multiple Choice

If an organism has the incorrect number of chromosomes per cell they are

• ploidy

• euploid

• aneuploidy

• polyploidy

Multiple Choice

If an organism has three or more sets of chromosomes per cell they are

• ploidy

• euploid

• aneuploidy

• polyploidy

Multiple Choice

This image is known as a

• chromosome picture

• karyotype

• polyploidy

• aneuploidy

Multiple Choice

This karyotype is of a

• male

• female

Multiple Choice

This karyotype is of a

• male

• female

Multiple Choice

If a gamete experiences the gain of a chromosome due to nondisjunction it is known as

• eusomy

• monosomy

• disomy

• trisomy

Multiple Choice

If a gamete experiences the loss of a chromosome due to nondisjunction it is known as

• eusomy

• monosomy

• disomy

• trisomy

Multiple Choice

This karyotype belongs to an individual that has

• euploid cells

• monosomy

• trisomy

• polyploidy

Multiple Choice

This karyotype belongs to an individual with

• Down Syndrome

• Turner Syndrome

• Trisomy 21

• Klinefelter Syndrome

Multiple Choice

This karyotype belongs to an individual with

• Down Syndrome

• Turner Syndrome

• Trisomy 21

• Klinefelter Syndrome

Multiple Choice

If an individual is aneuploidy and is said to have "XO" for their sex chromosomes they have

• Down Syndrome

• Turner Syndrome

• Trisomy 21

• Klinefelter Syndrome

Multiple Choice

If an individual is aneuploidy and is said to have "XXY" for their sex chromosomes they have

• Down Syndrome

• Turner Syndrome

• Trisomy 21

• Klinefelter Syndrome

Multiple Choice

When a chromosome segment breaks from a chromosome and reattaches to a nonhomologous chromosome it is known as a

• inversion

• translocation

• duplication

• deletion

Multiple Choice

When a chromosome segment is copied it is known as a

• inversion

• translocation

• duplication

• deletion

Multiple Choice

When a chromosome segment is deleted it is known as a

• inversion

• translocation

• duplication

• deletion

Multiple Choice

When a chromosome segment breaks from the chromosome, reverses its orientation, and then reattaches in it's original position it is known as an

• inversion

• translocation

• duplication

• deletion

Multiple Choice

Polyploidy is common in

• animals

• plants

• bacteria

• archea

Multiple Choice

Which life cycle is defined as the dominant stage being diploid

• diploid-dominant

• haploid-dominant

• alteration of generations

Multiple Choice

Which life cycle is defined as the dominant stage being haploid

• diploid-dominant

• haploid-dominant

• alteration of generations

Multiple Choice

Which life cycle has both stages apparent

• diploid-dominant

• haploid-dominant

• alteration of generations