Quarter 3 Unit 4.1 - Melissa F Boyer | Biblioteka

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?

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

The pairing of homologous chromosomes.

The replication of centrioles

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?

C → A → B → D → E

A→ E → B → C → D

B → D → E → A → C

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

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

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.

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?

10

20

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?

Interphase

Anaphase

Prophase

Telophase

5.1a