Transcription Practice

The process in which a segment of DNA is copied to produce a strand of mRNA.

• Transcription

• Translation

• Replication

• None of these

Label the names of the bases in DNA!

a

b

c

d

Thymine

Guanine

Adenine

Cytosine

Tags

NGSS.HS-LS1-1

In DNA, A pairs with (a)   and C pairs with (b)  

• T
• G
• A
• C

Label the names of the bases in RNA!

a

b

c

d

Guanine

Uracil

Adenine

Cytosine

In RNA, A pairs with (a)   and C pairs with (b)  

• G
• U
• T
• A
• C

Match the complementary DNA strands! (Remember follow DNA base pairing rules to match them up!)

• G G G

• C C C

• A A T

• A A G

• T G C

• G C T

• C G A

• T T A

• T T C

• A C G

Match the complementary RNA strands! (Remember follow RNA base pairing rules to match them up!)

• C C A

• A U C

• U U C

• G G A

• U A G

• A A G

• G U C

• C A G

• G U A

• C A U

Let's practice transcription now that you've had practice with DNA and RNA bases! Look at the DNA sequence below and match up the correct complementary RNA strand.

3' A G C T T G 5'

​ (a)  

• U C G A A C
• T C G A A G
• A G C T T G
• C T A G G A

Let's keep practicing!

DNA sequence: A A C C G T

mRNA strand: ​ (a)  

• U U G G C A
• T T G G C A
• A A C C G T

I'm going to give you a strand of DNA, your job is to write out the complementary mRNA you'd get during transcription!

DNA Strand: C G T A G G