Texas Southern University - BIOL 347

Chapter 07

The Blueprint of Life, from DNA to Protein

Matching Questions

 1)Which of the following best matches the description:

1. 70s ribosome               
2. Cap      
3. splicing             
4. polycistronic                
5.  translation begins while mRNA is still being transcribed     
6. poly A               

True / False Questions

1. Adenine binds to thymine via 3 hydrogen bonds.

2. One end of a strand of DNA is different from the other end.

3. DNA replication is usually unidirectional.
4. There are 4 functional types of RNA.

5. The minus strand of DNA serves as the template for RNA production.

6. Antisense RNA is the complement of the plus strand and may be useful in inhibiting translation.

7. The genetic code is universal.

8. A codon consists of 2 nucleotides.

9. The anticodon determines which amino acid is linked to its tRNA.

10. Ribozymes are non-protein molecules with catalytic activity.

Essay Questions

11. How could different sigma factors be used to regulate gene expression?

12. Discuss how, due to the nature of DNA polymerase, the antiparallel structure of DNA results in a lagging strand being formed during replication.

13. How could dsRNA be used to regulate gene activity?