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

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