1. The function of most proteins is determined by their ______________ structure
ID: 41881 • Letter: 1
Question
1. The function of most proteins is determined by their ______________ structure.
2. The strand of DNA copied in transcription is called the _______________strand.
3. RNA polymerase and its associated compounds attach to the ______________ region of the gene.
4. The process for gene transplantation was greatly facilitated by the discovery of
____________________ _______________________, proteins made by bacteria to protect themselves against foreign DNA.
5. ____________________ __________________molecules are carried to the ribosome by molecules of tRNA.
6. The pyrimidines of DNA are ____________________ and ____________________.
7. Mutations that occur in __________________ cells will not be passed on to offspring.
8. The three base sequence in tRNA that matches mRNA is called a(n)
__________________________.
9. Before mRNA becomes functional, certain sequences are removed. These sequences
are called _________________________________.
10. Transplanting the gene into a bacterial cell is accomplished by placing the gene in a
small DNA sequence called a(n) _________________________________.
B. Answer the following in one or two sentences. (25 points)
1. What is a mutation? Tell me what it is and how it causes a problem. (5)
2. What is the transcription initiation complex, and what does it do? (5)
3. Describe how amino acids get in the right sequence when the protein is being synthesized. (10)
4. Given a palindromic sequence A A G C T T
T T C G A A
Show by using your space bar how a restriction enzyme might cut this DNA. (5)
C C G T T A C G A A G C T T C C C T G
G G C A A T G C T T C G A A G G G A C
Explanation / Answer
1. The function of most proteins is determined by their ___tertiary_________ structure.
2. The strand of DNA copied in transcription is called the ______coding_or leading________strand.
3. RNA polymerase and its associated compounds attach to the _____promoter_________ region of the gene.
4. The process for gene transplantation was greatly facilitated by the discovery of
_________DNA ligase___________ ___________Restriction enzymes____________, proteins made by bacteria to protect themselves against foreign DNA.
5. _____________AMINO ACIDS______________molecules are carried to the ribosome by molecules of tRNA.
6. The pyrimidines of DNA are _______Thymine_____________ and __________Cytosine__________.
7. Mutations that occur in _____somatic cells (non-reproductive cells)_____________ cells will not be passed on to offspring.
8. The three base sequence in tRNA that matches mRNA is called a(n)
_________anticodon_________________.
9. Before mRNA becomes functional, certain sequences are removed. These sequences
are called _____________Introns____________________.
10. Transplanting the gene into a bacterial cell is accomplished by placing the gene in a
small DNA sequence called a(n) _________Plasmid (thus act as vector)________________________.
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