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This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Genetic Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
Ligation enzymes are used for ligating newly synthesized okazaki fragments. What holds true for okazaki fragments? |
A. | Okazaki fragments are short fragments of DNA formed on the leading strand |
B. | Okazaki fragments are large fragments of DNA formed on the lagging strand |
C. | Okazaki fragments are short fragments of DNA formed on the lagging strand |
D. | Okazaki fragments are large fragments of DNA formed on the leading strand |
Answer» D. Okazaki fragments are large fragments of DNA formed on the leading strand | |
2. |
Bacteriophage lambda is having a phage recombination system. Following are the characteristics of this system ____________ |
A. | It is used for inserting phage genome into the bacterium |
B. | It is used for inserting bacterial genome into the phage |
C. | The specific site in bacteria is attB and that in phage is attP |
D. | The specific sites in both of them are called as attP |
Answer» B. It is used for inserting bacterial genome into the phage | |
3. |
Phage based recombination systems are used for ____________ |
A. | cleaving the molecules at specific sites |
B. | adding the molecules at specific sites |
C. | breakage and rejoining the molecules at specific sites |
D. | breakage at random sites |
Answer» D. breakage at random sites | |
4. |
Mobile genetic elements can be transferred from one DNA portion to another. The enzyme carrying out this is ____________ |
A. | Ligase |
B. | Transciptase |
C. | Transposase |
D. | Endonuclease |
Answer» D. Endonuclease | |
5. |
E. coli DNA ligase doesn t require a cofactor. |
A. | True |
B. | False |
Answer» C. | |
6. |
Enzyme commonly used for carrying out ligation reaction is ____________ |
A. | Transferase |
B. | Reverse transciptase |
C. | Ligase |
D. | DNase |
Answer» D. DNase | |