8- Amino acid sequence of the encoded protein isn't changed in

9- Hemoglobin S is an example of a /an

10- If the codon UAC on mRNA changes into UAG as a result of a base Substitution in DNA, it will result in

11- Insertion of a base in a gene can cause

12- A frameshift mutation changes the reading frame because the genetic code

13- From DNA the genetic message is transcribed into this compound :

14- In the following partial sequence of mRNA, a mutation of the template DNA results in a change in codon 91 to UAA the type of mutation is

1- In the process of transcription in bacterial cells

2- The correct statement concerning RNA and DNA polymerase is

3- Termination of the synthesis of the RNA molecule is signalled by a sequence in the template strand of the DNA molecule, a signal that is recognized by a termination protein, the

4- The mechanism of synthesis of DNA and RNA are similar in all the following ways except

5- A mRNA of eukaryotes can code for

6- mRNA of prokaryotes can code for

7- Reverse transcriptase is capable of synthesising

8- The intiation site for transcription is recognized by

11- In mammals, synthesis of mRNA is catalysed by

12- Heterogeneous nuclear RNA is the precursor of

14- A consensus sequence on DNA , called TATA box, is the site for attachment

15- Introns are present in DNA of

16- Non coding sequences in a gene are known as