2.3

Question 1

is the process by which a
segment of DNA directs the synthesis
of an RNA

Answer 1

Transcription

Question 2

DNA does not produce proteins directly:
one strand of DNA must be copied first
into a

Answer 2

complementary RNA Sequence

Question 3

unwinds the DNA
(responsible for polymerization of RNA)

Answer 3

RNA Polymerase

Question 4

In eukaryotes, the binding of
several transcription factors
that make the binding of RNA
polymerase possible is
activated by unique regions in
the DNA called ______________

Answer 4

promoter (upstream)

Question 5

In stages of transcription,
______________ requires the DNA double helix to partially unwind in the
region of mRNA synthesis.

Answer 5

Initiation

Question 6

The region of unwinding is called a ___________ _________.

Answer 6

Transcription bubble

Question 7

One important sequence in the prokaryotic promoter is
located 10 bases before the transcription start site (-10) and
is commonly called the

Answer 7

TATA box

Question 8

it assembles at the
promoter.

Answer 8

RNA Polymerase holoenzyme

Question 9

Only one of the two DNA strands is transcribed. The
transcribed strand of DNA is called the ____________ _________ because it is the template for mRNA production.

Answer 9

template strand (antisense/non-coding strand)

Question 10

The mRNA product is complementary to the template strand
and is almost identical to the other DNA strand, called
the

Answer 10

non-template strand (sense strand/coding strand)

Question 11

Transcription stops at the

Answer 11

terminator

Question 12

Before the transcription
of a gene is completed, a
protein called _____________ binds to the
termination site and
brings about the
termination of
transcription.

Answer 12

Rho (p) factor