Unit 3 Review for before test

Multiple Choice

Cells spend most of their time in ___________________of the cell cycle

• cytokinesis

• cell division

• mitosis

• interphase

Multiple Choice

What is the order of the phases in interphase?

• G1, S, G2

• S, G1, G2

• G1, G2, S

• S, G2, G1

Multiple Choice

A chromosome is packaged

• DNA

• Protein

• Carbohydrates

• Lipids

Multiple Choice

What happens in the S phase of interphase?

• More RNA is made

• More DNA is made

• DNA is broken down

• RNA is broken down

Multiple Choice

During this phase of the cell cycle, the cell membrane, cytoplasm and organelles split and 2 new daughter cells are formed.

• Metaphase

• Anaphase

• Telephase

• Cytokinesis

Multiple Choice

During mitosis, the cell divides its

• cell membrane

• mitochondria

• cytoplasm

• nucleus

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Anaphase

• Telophase

• Metaphase

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

Spindle fibers pull the chromosomes apart and away, towards the opposite sides of the cell describes:

• Prophase

• Metaphase

• Telophase

• Anaphase

Multiple Choice

Nuclear membrane breaks down, chromatin condenses into chromosomes

• Prophase

• Anaphase

• Metaphase

• Telophase

Multiple Choice

Spindle fibers attach and line the chromosomes in the center/middle of the cell describes:

• Prophase

• Telophase

• Metaphase

• Anaphase

Multiple Choice

What phase of Mitosis is the picture showing?

• Interphase

• Prophase

• Telophase

• Metaphase

Multiple Select

Which happen in anaphase? Select all that apply!

• nuclear envelope breaks down

• chromosomes line up at the midline of the cell

• the chromatids of the separated chromosome are pulled away to opposite poles of the cell

• chromosomes are pulled apart

Multiple Select

Which happen in telophase? Select all that apply!

• chromatin turns into visible chromosomes

• two nuclei are reformed

• chromosomes are pulled away from each other

Multiple Choice

Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase. 

• prophase, metaphase, telophase, anaphase
• prophase, anaphase, metaphase, telophase
• prophase, metaphase, anaphase, telophase
• prophase, telophase, metaphase, anaphase

Multiple Choice

Mitosis is

• sexual reproduction

• asexual reproduction

Multiple Select

Select all that are true about mitosis

• it's the division of the cell

• it's the division of the nucleus

• it's the division of the cytoplasm

• it's a cloning of a kind

• it's copy/paste

Multiple Choice

Mitosis is asexual reproduction of _________cells

• somatic (body)

• germline (reproductive)

Multiple Choice

Due to mitosis, the chromosome number is conserved. What does this mean?

• The mother cell and the daughter cells have the same number of chromosomes

• The mother cell and the daughter cells have a different number of chromosomes

Multiple Choice

A mother cell with 38 chromosomes enters mitosis. How many chromosomes will the daughter cells have?

• 38

• 76

• 19

• 100

Multiple Choice

A daughter cell has a diploid number of chromosomes. What kind of number did the mother cell have?

• 2n

• 3n

• n

• n/2

Multiple Choice

What kind of cells are made in MEIOSIS?

• Haploid cells
• Diploid Cells
• Skin Cells
• Liver Cells

Multiple Choice

Diploid Cells are represented by

• 2n
• n
• 4n
• 1/2 n

Multiple Choice

If the Diploid number of Carrots is 18, the haploid (half) number is

• 18
• 9
• 27
• 36

Multiple Choice

Which of the following best describes meiosis?

• It is carried out in all tissues theat require cell replacement
• It occurs only in cells in the reproductive structures of an organism
• It happens in all of the tissues except the brain and spinal cord
• It is the first stage of mitosis

Multiple Choice

products of meiosis are genetically

• different
• identical

Multiple Choice

How many daughter cells does Meiosis create?

• 2
• 4
• 8
• 1

Multiple Choice

While the goal of mitosis is to help you make more identical cells for GROWING, meiosis is used to make egg and sperm cells which are used for

• sexual reproduction

• asexual reproduction

• binary fussion

• binari fission

Multiple Choice

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

Multiple Choice

The process of crossing over occurs in what phase of meiosis?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

Multiple Choice

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Multiple Choice

In prophase 1, pairs of homologous chromosomes find each other and pair up. What happens next in prophase 1?

• The paired up chromosomes exchange DNA parts.

• Nothing happens. That is the end of prophase 1.

• The chromosomes are separated.

• The DNA turns to nucleic acids.

Multiple Choice

Crossing over creates

• male genotype
• genetic variation (differences)
• DNA replication
• mitosis

Multiple Choice

What phase is represented?

• metaphase 1
• metaphase 2
• anaphase 1
• anaphase 2

Multiple Choice

What phase is  shown in the picture?

• anaphase 1
• anaphase 2
• metaphase 1
• telophase 1

Multiple Choice

What phase is  shown in the picture?

• metaphase 2
• anaphase 2
• metaphase 1
• telophase 1

Multiple Choice

Which cellular process is shown?

• meiosis
• endocytosis
• mitosis
• phagocytosis

Multiple Choice

In anaphase 2, the recombinant chromosome's _______________ ________________ are pulled apart to opposite poles of the cell.

• chromatins chromatins

• homologous pairs

• sister chromatids

• sister fibers

Multiple Choice

At the end of meiosis 2, ____________ daughter cells are made. These are NOT ____________.

• 1, identical

• 2, similar

• 4, identical

• 8, similar

Multiple Choice

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 23, 46
• 46, 23
• 2, 4
• 50, 100

Multiple Choice

This picture shows which process? 

• mitosis
• meiosis
• the cell cycle

​WARNING! WARING! WARNING! C WORD!

Multiple Choice

Which cell would undergo cell division more frequently, a healthy cell or a cancerous cell?

• cancerous

• health

Multiple Choice

Throughout the cell cycle, there are checkpoints that

• inspect the cells to make sure they are developing normally

• send the cells to resting states

• check on the cells to make sure they are there

• inspect the cells for accuracy

Multiple Choice

These checkpoints are responsible for preventing _____________cells from continuing to make more of themselves.

• cancerous

• noncancerous

• small

• good

Multiple Choice

Cancer refers to

• controlled cell growth and replication

• garbage

• more garbage

• uncontrolled cell growth and replication

Multiple Choice

Mutations, toxins, radiation, the sun, and some pathogens are possible ______________for cancer.

• causes

• helpers

• steps

• chemicals

Multiple Choice

Genetic factors such as _______________are a frequent cause of cancer.

• mitosis

• the sun

• mutations

• DNA

​Any specific questions from study guide?