{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

A student using a compound light microscope is observing cells undergoing mitosis. If the cells are from a bean plant, which process could the student observe?

The pairing of homologous chromosomes.

The replication of centrioles

A pinching in of the cell membrane to form two cells.

The formation of a new plate between two new cells

5.1a

1

The diagrams below show several events that occur during the process of mitosis. Which sequence represents the correct order of these events?

A→ E → B → C → D

B → D → E → A → C

C → A → B → D → E

A → E → D → B → C

5.1a

1

The drug colchicine inhibits the formation of spindle fibers during mitosis. If you treat dividing plant cells with colchicine, what would you expect the result to be?

The chromosomes are halved during cell division and the result is a cell that has half the number of chromosomes than it would normally have.

The homologous chromosomes do not pull apart during cell division and the result is a cell that has double the number of chromosomes than it would normally have.

The chromosomes are separated during prophase and each of the four daughter cells receives a haploid number of chromosomes.

The chromosomes do not pull apart in an orderly fashion during cell division and the result is two cells with unequal numbers of chromosomes.

5.1a

1

The diploid chromosome number in a certain species of fish is 20. How many chromosomes would normally be found in a bone cell of this fish?

20

10

40

23

5.1a

1

A student looking through a microscope records observations about a cell. Which stage of the cell cycle has the student described?

Prophase

Anaphase

Interphase

Telophase

5.1a

1

If a normal diploid cell has 8 chromosomes, then...

there are 8 homologous pairs of chromosomes per diploid cell

there are 4 chromosomes per cell after meiosis

there are 8 chromatids per diploid cell between S phase and the first division of meiosis

sperm cells made from this diploid cell would have 8 chromosomes

5.3a

1

Organisms that reproduce asexually have the advantage of being able to quickly colonize a new territory. Organisms that reproduce sexually have the advantage of____.

exploiting more food sources

larger populations

shelter from the elements

greater genetic diversity

5.3a

1

The products of meiosis are due to ___:

genetically different; independent assortment of homologous chromosomes

genetically the same; the crossing over of homologous chromosomes

genetically different; the separation of sister chromatids

genetically the same; DNA replication in the S phase

5.3a

1

Meiosis results in

4 haploid daughter cells

2 diploid daughter cells

4 diploid daughter cells

2 haploid daughter cells

5.3a

1

Meiosis occurs only in germ cells to allow for the production of ___________ cells, also know as _ in males and __________ in females.

Gametic, sperm, eggs

Somatic, eggs, sperm

Gametic, eggs, sperm

Somatic, sperm, eggs

5.3a

1

Which of the following best explains how meiosis is a contributing factor to genetic variation within a species?

Meiosis increases the number of chromosomes in daughter cells leading to new gene combinations

Meiosis allows for crossing over of chromosomes and independent assortment, resulting in new gene combinations

Meiosis reduces the number of mutations within an organism

Meiosis allows for crossing over of chromosomes and independent assortment, resulting in identical genes

5.3b

1

The DNA content of a diploid cell is measured in the G1 phase. After meiosis, the DNA content of one of the two cells produced would be

Equal to that of the G1 cell

One fourth that of the G1 cell

Twice that of the G1 cell

One half that of the G1 cell

5.3b

1

Which of the following statements is true about meiosis in humans?

The process begins in males and females at the same time

Females produce far more gametes than males do

Sperm and ova (egg) are not identical to the parent cells that produced them

Meiosis in males creates genetic diversity, but not in females

5.3b

1

As a result of fertilization, which of the following normally occurs?

A single sperm and ovum (egg) combine their genetic material to create a haploid zygote

A single sperm and ovum (egg) combine their genetic material to create a diploid zygote

A gamete is created

The final phase of spermatogenesis is begun

5.3b

1

What is one important result of chromosomal crossing-over during meiosis?

an increase in the amount of genetic variation within a population that can improve its ability to survive

a decrease in the frequency of genetic mutations and a limit to the diversity of traits within a species

a decrease in the number of chromosome pairs that can be passed from each parent to its offspring

an increase in the likelihood of having gametes in offspring that are genetically the same as their parents

5.3b

1

Which of the following is a characteristic of BOTH mitosis and meiosis?

Divides twice

Produces body cell

Cell division

Makes 2n Cells

5.3c

1

Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?

Two stages of cell division

our daughter cells that are produced from each parent cell

Daughter cells that are identical to the parent cell

Replication of cellular genetic material (DNA replication)

5.3c

1

Unlike mitosis which produces _____________, meiosis results in the formation of _.

two genetically identical cells; four genetically different cells

four genetically identical cells; two genetically different cells

two genetically different cells; four genetically different cells

5.3c

1

Which process allows a mammal to continue to grow in size?

Mitosis of body cells

Meiosis of sex cells

Meiosis of body cells

Mitosis of sex cells

5.3c

1

Which of the following statements about the difference between mitosis and meiosis is TRUE?

both processes produce two daughter cells

daughter cells in meiosis are identical to the parents cells

both processes undergo two cell divisions

homologous chromosome pairs line up only in meiosis

5.3c

Quarter 3 Unit 4

Quarter 3 Unit 4

A student using a compound light microscope is observing cells undergoing mitosis. If the cells are from a bean plant, which process could the student observe?

The diagrams below show several events that occur during the process of mitosis. Which sequence represents the correct order of these events?

The drug colchicine inhibits the formation of spindle fibers during mitosis. If you treat dividing plant cells with colchicine, what would you expect the result to be?

The diploid chromosome number in a certain species of fish is 20. How many chromosomes would normally be found in a bone cell of this fish?

A student looking through a microscope records observations about a cell. Which stage of the cell cycle has the student described?

If a normal diploid cell has 8 chromosomes, then...

Organisms that reproduce asexually have the advantage of being able to quickly colonize a new territory. Organisms that reproduce sexually have the advantage of____.

The products of meiosis are ­________ due to ___________:

Meiosis results in

Meiosis occurs only in germ cells to allow for the production of _______________ cells, also know as _________ in males and ______________ in females.

Which of the following best explains how meiosis is a contributing factor to genetic variation within a species?

The DNA content of a diploid cell is measured in the G1 phase. After meiosis, the DNA content of one of the two cells produced would be

Which of the following statements is true about meiosis in humans?

As a result of fertilization, which of the following normally occurs?

What is one important result of chromosomal crossing-over during meiosis?

Which of the following is a characteristic of BOTH mitosis and meiosis?

Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?

Unlike mitosis which produces _________________, meiosis results in the formation of _____.

Which process allows a mammal to continue to grow in size?

Which of the following statements about the difference between mitosis and meiosis is TRUE?

A student using a compound light microscope is observing cells undergoing mitosis. If the cells are from a bean plant, which process could the student observe?

The diagrams below show several events that occur during the process of mitosis. Which sequence represents the correct order of these events?

The drug colchicine inhibits the formation of spindle fibers during mitosis. If you treat dividing plant cells with colchicine, what would you expect the result to be?

The diploid chromosome number in a certain species of fish is 20. How many chromosomes would normally be found in a bone cell of this fish?

A student looking through a microscope records observations about a cell. Which stage of the cell cycle has the student described?

If a normal diploid cell has 8 chromosomes, then...

Organisms that reproduce asexually have the advantage of being able to quickly colonize a new territory. Organisms that reproduce sexually have the advantage of____.

The products of meiosis are ­________ due to ___________:

Meiosis results in

Meiosis occurs only in germ cells to allow for the production of _______________ cells, also know as _________ in males and ______________ in females.

Which of the following best explains how meiosis is a contributing factor to genetic variation within a species?

The DNA content of a diploid cell is measured in the G1 phase. After meiosis, the DNA content of one of the two cells produced would be

Which of the following statements is true about meiosis in humans?

As a result of fertilization, which of the following normally occurs?

What is one important result of chromosomal crossing-over during meiosis?

Which of the following is a characteristic of BOTH mitosis and meiosis?

Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?

Unlike mitosis which produces _________________, meiosis results in the formation of _____.

Which process allows a mammal to continue to grow in size?

Which of the following statements about the difference between mitosis and meiosis is TRUE?

The products of meiosis are due to ___:

Meiosis occurs only in germ cells to allow for the production of ___________ cells, also know as _ in males and __________ in females.

Unlike mitosis which produces _____________, meiosis results in the formation of _.

The products of meiosis are due to ___:

Meiosis occurs only in germ cells to allow for the production of ___________ cells, also know as _ in males and __________ in females.

Unlike mitosis which produces _____________, meiosis results in the formation of _.