Semi

Question 1

a process where RNA molecules are synthesized from DNA templates.

Answer 1

Transcription

Question 2

this process is catalyzed by the enzyme _______ for both prokaryotes and eukaryotes

Answer 2

RNA Polymerase

Question 3

RNA molecules are synthesized that are complementary and antiparallel to one of the two nucleotide strands of DNA,

Answer 3

Template strand

Question 4

a stretch of DNA that encodes an RNA molecule and the sequences necessary for its transcription.

includes: a promoter, an RNA-coding
region and a terminator

Answer 4

Transcription unit

Question 5

A sequence of DNA nucleotides that is copied into an RNA molecule

Answer 5

RNA coding region

Question 6

•a DNA sequence that the transcription apparatus recognizes and binds

• it determines the DNA strand to be read as the template and the direction of transcription

Answer 6

Promoter

Question 7

sequence of DNA nucleotides that is copied into an RNA molecule

Answer 7

RNA-coding region

Question 8

A sequence of nucleotides that signals where transcription is to end

Answer 8

Terminator

Question 9

RNA is synthesized from ______

Answer 9

Ribonucleoside triphosphate

Question 10

enzymes responsible for transcription in both prokaryotic and eukaryotic cells are called _______

Answer 10

DNA-dependent RNA polymerases

Question 11

The complete enzyme consists of five subunits:

Answer 11

two a, one b, one b’, one o

Question 12

relatively weakly bound and can be dissociated from the other four subunits, which constitute the core polymerase

Answer 12

o subunit

Question 13

is a mechanism in both eukaryotes and prokaryotes that causes mRNA transcription to be stopped.

Answer 13

intrinsic termination / rho-independent termination

Question 14

The second type of termination signal involves an additional protein called the rho (P) factor.

Answer 14

Rho-dependent polarity

Question 15

1. In eukaryotes, the DNA template exists as ______

Answer 15

Chromatin