SQ 13 (E4)

Telophase

A complete set of chromosomes composed of one chromatid (single stranded chromosomes) is found at each pole of the dividing cell. A. prophase B. metaphase C. anaphase D. telophase

Malignant Tumor

Mass of abnormal cells that divide uncontrollably and invade other tissues

Benign Tumor

Mass of abnormal cells that do not invade other tissues

G1

Most cells double in size during:

G1, S, and G2

New cell organelles are synthesized during:

Proto-oncogenes

Normal healthy genes that can be changed

Leukemia/Lymphoma

Arise in blood forming tissues (bone marrow, spleen, lymph nodes)

Carcinomas

Arise in external or internal coverings of body (skin, lungs, etc.)

Sarcomas

Arise in support tissues (bone and muscle)

Budding

Asexual reproduction produces offsprings by ____________

G2

At which checkpoint does the cell check to determine if DNA replication has occured normally for the cycle to continue?

G1

At which checkpoint does the cell check to determine if it has reached an optimum size for the cycle to continue?

G1

At which checkpoint does the cell check to determine if the chemical structure of the chromosomal DNA has not been damaged?

M

At which checkpoint does the cell check to determine if the chormosomes have attached properly to the spindle microtubules and the cell is ready to eneter anaphase of mitosis for the cycle to continue?

G1

At which checkpoint does the cell check to determine if the nutrient supply is adequate for the cycle to continue?

S

DNA is replicated:

M

Double stranded chromosomes attach to the microtubules of the spindle during:

B, C, D, E

Which of the following are true statements about DNA replication? Check all that apply. A. During DNA replication, the chromosome number of cells doubles. B. During DNA replication, chromosomes composed of one molecule of DNA are transformed into chromosomes composed of two molecules of DNA. C. DNA replication occurs during Interphase of the cell cycle. D. During DNA replication, chromosomes composed of one chromatid are transformed into chromosomes composed of two chromatids. E. DNA replication occurs in S phase of the cell cycle.

Oncogenes

Cancer causing genes

Prophase

Chromatin fibers become tightly coiled to form discrete chromosomes. A. prophase B. metaphase C. anaphase D. telophase

S

Chromosomes composed of one chromatid become chromosomes composed of two chromatids during:

Metaphase

Chromosomes composed of two chromatids (double stranded chromosomes) line up at the equator of the cell. A. prophase B. metaphase C. anaphase D. telophase

Telophase

Cytokinesis is completed at the end of this stage. A. prophase B. metaphase C. anaphase D. telophase

M

Cytokinesis occurs during:

Anaphase

The chromatids of double stranded chromosomes are pulled apart. A. prophase B. metaphase C. anaphase D. telophase

G1

The length of this stage often determines the length of the entire cell cycle:

Prophase

The nuclear envelope disappears. A. prophase B. metaphase C. anaphase D. telophase

8; 2N

The nucleus of each of the two stomach cells produced at the end of the M stage of the cell cycle will contain ____ chromosomes which is the ____ chromosome number. A. 3,N B. 6,N C. 8,N D. 3;2N E. 6;2N F. 8;2N G. none of the above are correct

Prophase

The spindle apparatus is formed. A. prophase B. metaphase C. anaphase D. telophase