Module 2 Mini Lesson 2 Self-Check

A strand of recently transcribed messenger RNA contains the following components: (1) (intron), (2) exon, (3) intron, (4) exon, (5) exon. What sequence represents the mature messenger RNA?

1,3,5
Incorrect
2,4,5
Correct! As we know that the introns are removed and the exons spliced together in mature mRNA.
1,3
Incorrect.
1,2,3,4,5
Incorrect

Match the following terms with the correct statement:

  1. Reproduction
  2. Replication
  3. Translation
  4. Transcription

What term is used to describe the process by which DNA is copied to produce 2 hybrid DNA molecules?
What term is used to describe the process by which a segment of DNA is copied to produce a molecule of messenger RNA?
What term is used to describe the process by which proteins are synthesized from a genetic code?

The RNA required for protein synthesis is (are)

mRNA
Incorrect
tRNA
Incorrect
rRNA
Incorrect
All of these
Correct! All of these is the correct answer

The DNA template strand for RNA synthesis has the following order of bases.
AGCTTCGA
What will be the order of bases in the mRNA?

TCGAAGCT
Incorrect
UGCUAGCT
Incorrect
TCGAUCGU
Incorrect
UCGAAGCU
Correct! This is the correct mRNA base order, knowing that complementary bases line up, but U substitutes for T.