Biol 303 Final Review

True or False: A protein must have a signal sequence in order to enter the nucleus.

• True

• False

Which of the following histones are considered the linker?

• H1

• H2A

• H3

• H4

• H2B

Which type of chromatin remains compacted in the cells at all times?

• Euchromatin

• Constitutive heterochromatin

• Facultative heterochromatin

• Constitutive Euchromatin

Which motif is characterized by two alpha helix segments separated by intervening loops?

• Zinc Finger Motif

• Helix-Loop-Helix Motif

• Leucine Zipper

Which enzyme adds acetyl groups to help stimulate transcription?

• HAT

• HDAC

• Ran

• UTR

True or False: The inhibitory phosphate must be taken off in order for interphase to happen.

• True

• False

Which protein would be involved in breaking down the nuclear envelope?

• Kinase

• Phosphatase

• Lamins

• Ligase

Which transcription factor has enzymatic properties?

• TF IIH

• TF IID

• TF IIA

• TF IIF

Ran-GTP must have a higher concentration in the ______ in order for nucleocytoplasmic transport to work.

• Nucleus

• Cytoplasm

• Ribosomes

• Extracellular Matrix

Intermembrane proteins located on the cell membrane are synthesized in the...

• Rough ER

• Cytoplasmic ribosomes

• Lysosomes

• Smooth ER