L9: Regulation of Eukaryotic Transcription

Question 1

Cloning of animals demonstrates that _____ retain a complete complement of genetic informaton

Answer 1

nuclei

Question 2

Almost all cells of an organism are originated from a single cell (_____-fusion of sperm and an egg cell) and every cell has the _____ genome

Answer 2

zygote

same

Question 3

Why will individual cells eventually take developmental fate and become different cells?

Answer 3

Different cells express different sets of genes, so they have different set of proteins

Question 4

Specialized cells make _____ proteins

Answer 4

specialized

Question 5

Red blood cell –> Hemoglobin

- carries oxygen

Answer 5

Retina red cell –> Rhodopsin

- absorbs light

Question 6

Eukaryotic DNA is packed into _____ that consist of both DNA and protein

Answer 6

chromosomes

Question 7

Eukaryotic packaging

Answer 7

DNA –> nucleosomes –> 30nm fiber –> interphase chromosome –> metaphase chromosome –> entire chromosome

Question 8

Modifications of histone tails determine _____ structure and _____ activity

Answer 8

chromatin

transcription

Question 9

Histones in _____ are highly acetylated (hyperacetylation) while histones in _____ are rarely acetylated (hypoacetylation)

Answer 9

euchromatin

heterochromatin