Cell Signaling, Cell Cycle, Cancer, DNA Wayground 2026

To amplify the signal received by the receptor

To deactivate the signaling pathway

To act as the primary signal molecule

To directly alter gene expression

1um cube (smallest)

2um cube (middle)

4um cube (largest)

G1, G2, S

S, G1, G2

G1, S, G2

G1, G2, G3

Chromatin

Nucleosomes

Histones

Supercoils

1 ft

3 ft

6 ft

10 ft

Internal

External

Both Internal and External

None of the above

Density-dependent inhibition

Anchorage dependence

Cellular apoptosis

Mitosis

Benign tumors are harmful, malignant tumors are not harmful

Benign tumors do not metastasize, malignant tumors do

Benign tumors are caused by genetics, malignant tumors are caused by pathogens

Benign tumors are caused by radiation, malignant tumors are caused by chemicals

Because you only get chromosomes from your mother.

Because you get one from your mother, and one from your father

Because you only get chromosomes from your father.

The mouse dies

The mouse lives

The mouse becomes ill

The mouse shows no symptoms

Attachment

Penetration

Replication

Release

The role of DNA in heredity

The structure of proteins

The function of ribosomes

The process of photosynthesis

Linus Pauling

Maurice Wilkins

James Watson

Francis Crick

The black and white pattern implied DNA had positive and negative charges.

The light circle in the center implied DNA strands were not bonded together.

The x-shape immediately suggested DNA had a double-helix structure.

phosphate group

nitrogen base

sugar

fatty acid