Biology Chapter 23 Biotechnology Mcqs Test Online Punjab Boards 12th Class

Please wait...

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• >>

 

Question 1 of 15

Biology

1. Which of the following is highly polymorphic molecular marker which is useful in DNA fingerprinting?

1.Cloned DNA sequence

2.A short tandeam repeats

3.Cosmid cloning vector

4.Palindromic DNA sequence

Question 1 of 15

Question 2 of 15

2. Which of the following sequences in double-stranded DNA is mostly likely to be recognized as a cutting site for a restriction enzyme?

1.AGTC TCAG

2.GGCC CCGG

3.AC CA TGGT

4.AAGG TTCC

Question 2 of 15

Question 3 of 15

3. The Dideoxynucleotides (ddATP, ddTTP, ddGTP, and ddCTP) are improvement in DNA sequencing because they:

1.Are not affected by high temperature

2.Cause the DNA fragments that contain them to migrate more slowly through the gel

3.Are used as prime

4.Cause premature termination of growing DNA strand

Question 3 of 15

Question 4 of 15

4. A cDNA clone contains:

1.Exons

2.Anticodon

3.Introns

4.mRNA

Question 4 of 15

Question 5 of 15

5. If eukaryotic DNA contains five cleavage sites for a particular restriction enzyme, how many fragments will be produced upon complete digestion of the DNA with that enzyme:

1.2

2.4

3.6

4.None

Question 5 of 15

Question 6 of 15

6. A paleontologist, has recovered a bit of tissue from the 400 year old preserved skin of an extinct bird. The researcher would like to compare DNA from the sample with DNA from living birds. Which of the following would be most useful for increasing the amount of the bird DNA available for testing?

1.southern hybridization

2.polymerase chain reaction (PCR)

3.a RFLP analysis

4.electroporation

Question 6 of 15

Question 7 of 15

7. Which of the following tools of recombinant DNA technology is incorrectly paired with its use?

1.Restriction enzyme ------ production of RFLPs.

2.DNA Ligase ----- enzyme that cuts DNA, creating the sticky ends of restriction fragments

3.Electrophoresis ------ separation of DNA fragments

4.Reverse transcriptase ------ production of cDNA from mRNA.

Question 7 of 15

Question 8 of 15

8. Which technique rapidly replicates specific DNA fragments without cloning?

1.cDNA libraries

2.Gel electrophoresis

3.polymerase chain reaction

4.genetic probe

Question 8 of 15

Question 9 of 15

9. The Ti plasmid carried by Agrobacterium tumefaciens, is especially useful for introducing genes into a:

1.Bacteria

2.Yeast

3.Plant

4.Animals

Question 9 of 15

Question 10 of 15

10. Gel electrophoresis separates nucleic acid on the basis of difference:

1.Relative proportion of adenine and guanine

2.Nucleotide sequence

3.Length (molecular weight)

4.Charge

Question 10 of 15

Question 11 of 15

11. Plants are more readily manipulated by genetic engineering than are animals because:

1.Plants genes do not contain interon.

2.Plant cell have large nuclei

3.A somatic plant cell can often give rise to a complete plant

4.Genes can be inserted into plant cells by microinjection

Question 11 of 15

Question 12 of 15

12. DNA molecules with complementary sticky ends associate by:

1.Ionic bond

2.Disulphide bond

3.Covalent bond

4.Hydrogen bond

Question 12 of 15

Question 13 of 15

13. A Plasmid:

1.Is a type of bacteriophage

2.Is a retrovirus

3.Is a type of cDNA

4.Is used as DNA vector

Question 13 of 15

Question 14 of 15

14. The PCR technique polymerase chain reaction:

1.Restriction enzymes

2.DNA ligase

3.Reverse transcriptase

4.Heat resistance DNA polymerase

Question 14 of 15

Question 15 of 15

15. A Genomic DNA library:

1.Is stored in a collection of recombinant bacteria

2.Is made using reverse transcriptase

3.Is a DNA copy of mature mRNAs.

4.Represents all the DNA in a specific chromosome

Question 15 of 15

 Loading...

 

Other Related test

• Punjab 11th Class English First Year at Harrow Mcqs Test Online
• Punjab 12th Class Chemistry Chapter 5 Halogen and Noble Gases MCQs Test Online
• Punjab 10th Class English Chapter 11 Great Expectations Mcqs Test Online
• Punjab 10th Class Math Chapter 8 Projection of Sides of a Triangle MCQs Test Online
• Punjab 9th Class Chemistry Model Paper 7 Mcqs Test Online
• Punjab 10th Class Computer Science Chapter 3 Input and Output Handling Mcqs Test Online
• Punjab 11th Class Urdu Zinda Shehar Murda Shehar Mcqs Test Online
• Punjab 12th Class Urdu Suqraat Mcqs Test Online
• Punjab 10th Class Physics Chapter 2 Sound Mcqs Test Online
• Punjab 11th Class Math Chapter 5 Partial Fractions Mcqs Test Online