Chapter 8: DNA Replication, Binary Fission, and Mitosis

Select all the body and cellular processes that require cell division (mitosis or meiosis) to function.

Replace dead cells

growth

reproduction

In asexual reproduction, the offspring are genetically ______ to each other.

Identical

Select all the following that are true about sexual reproduction.

Offspring or genetically different from their parents

two parents are required

Offspring are genetically different from each other

Sperm cells and egg cells are also called

gametes.

What process gives rise to gametes in humans?

meiosis

In sexual reproduction, the first cell of the next generation (the zygote) is produced by the process of______, which is the union of the sex cells.

fertilization

The type of cell division that divides a cells genetic information into two identical nuclei is called

Mitosis

Match each type of cancer treatment to its correct description.

Radiation.... Streams of energy that can be directed on tumors and cells in limited areas.

Surgery.... Removal of a tumor and surrounding tissues

chemotherapy.... Drugs designed to affect cancer cells, and sometimes other rapidly dividing cells, throughout the body

Place these mitotic events in the order that they occur, beginning with the earliest event at the top.

Interphase

Prophase

metaphase

Anaphase

telophase

cytokinesis

Match the following events of the eukaryotic cell cycle with their description.

Interphase... The time between cell division sandwich DNA replication, basic sailor activities, and cell growth take place

mitosis... Division of the contents of the nucleus

cytokinesis... division of the sale itself

Select all the following are true about malignant tumors.

They are likely to metastasize.

They invade adjacent tissue.

What is the key feature that classifies a disease of cancer.

Malignant cells

Place these mitotic events in the order that they occur, beginning with the earliest event at the top. 1->5

1. Chromosomes condense and become visible.

2. nuclear envelope breaks up and spindle fibers attached to chromosomes.

3. chromosomes align along the equator of the cell.

4. sister chromatids separate.

5. nuclear envelope re-forms.

The stage of mitosis shown in the picture is called

Prophase

The nuclear envelope breaks down during what phase of mitosis?

Prophase

Sister chromatids pulled apart to opposite poles of a cell during what phase of mitosis?

Anaphase

What cellular event is occurring in this picture?

Cytokinesis

An animal cells, the slide and tension around the middle of the Saul at the beginning of cytokinesis is called the

cleavage furrow.

The image to pick cytokinesis in a(n) ______.

Plant

The chromosomes condense and become visible under a light microscope during what phase of mitosis?

Prophase

Select all of the stages of eukaryotic cell cycle.

1 prophase

2 metaphase

3 anaphase

4 telophase

5 cytokinesis

Select all the following that describe the products of one cell undergoing mitotic cell division.

two daughter cells

identical genetic material

organelles distributed to daughter cells

During a section of the cell cycle collectively called ______, the cell is not dividing, but protein synthesis, cell growth, DNA replication, and basic cell functions are occurring.

Interphase

The G1, S and G2 phases are components of a part of the eukaryotic cell cycle called

Interphase

In the ______ phase of the cell cycle, the cells grow, carries out basic functions, and produces new organelles.

G1

The ______ consist of microtubule fibers that move the chromosomes during mitosis

Spindle

What stage of the cell cycle occurs after the S phase but precedes mitosis?

G2

During the______ ______ of interphase, DNA replication occurs.

S phase

The stage of mitosis shown in the image is called ______.

Metaphase

Which of the following is true about cancer risk?

Genetic mutations can cause cancer.

All cancers involve loss of cell cycle control.

Mutated genes that cause cancer can be inherited.

Chemicals or radiation in the environment can cause mutations that lead to cancer.

Which of the following best describes the overall process of mitosis?

The type of cell division that separates chromosomes and produces two daughter cells with identical nuclei.

Select all of the ways that genetic diversity arises in bacteria and archaea.

By mutations

by absorbing free DNA fragments

via a sex pilus