SINDH MDCAT 2020 PAPER

MDCAT 2020 ( PART 18 )

1. The organs which are similar but differ in structure are called

 
 
 
 

2. ____ occurs because natural selection gives some alleles a batter chance of survival than others

 
 
 
 

3. The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a

 
 
 
 

4. It is a method for rapid production of a very large number of copies of a particular fragment of DNA

 
 
 
 

5. What is the effect of DNA ligase?

 
 
 
 

6. Which of the following is the components/ tools of recombinant DNA technology?

 
 
 
 

7. Gel electrophoresis is a technique

 
 
 
 

8. Transgenic organisms

 
 
 
 

9. Which of the following is not necessary for PCR to occur?

 
 
 
 

10. This theory says that “mitochondria and chloroplast area in effect ancient bacteria which now live inside the large cells”

 
 
 
 

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