1. DNA polymerase I
2. DNA ligase
3. DNA gyrase
4. DNA transferase
DNA gyrase
1. A/T ratio is one
2. A+G=T+C
3. A+T=G-C
4. G/C ratio is one
A+T=G-C
1. UGG and GUU
2. UUG and GGU
3. UGU and GUG
4. GUG and UGU
UGU and GUG
1. All the body cells of an individual seem to have identical amounts and compositions of DNA,while reproductive cells have half the amount of DNA found in body cells
2. The proteins are the same from cell to cell in an individual,but the DNA differs;thus the DNA must be the material that makes different tissues different
3. DNA is the largest type of macromolecule found in living organism
4. DNA is found in the cell nucleus
All the body cells of an individual seem to have identical amounts and compositions of DNA,while reproductive cells have half the amount of DNA found in body cells
1. 3'-5' strand of DNA
2. 5'-3' strand of DNA
3. Both 3'-5' and 5'-3' strand of DNA
4. Formation of DNA from RNA
3'-5' strand of DNA
1. Termination codon
2. mRNA
3. Peptidyl transferase
4. rRNA
Termination codon
1. Initiating factors of RNA synthesis
2. Termination factors of RNA synthesis
3. Five polypeptide chains of RNA polymerase
4. Five polymerase enzymes
Five polypeptide chains of RNA polymerase
1. B type right handed
2. Z type left handed
3. B type left handed
4. Z type right handed
B type right handed
1. A non-sense mutation
2. CA TG A TGA TG
3. CATGATGATG
4. CATG ATG ATG
CATGATGATG
1. 1-2%
2. 3-5%
3. 5-10%
4. 20-30%
5-10\%