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- 1. Multiple Choice
What is central dogma
Formation of RNA from DNA and formation of proteins from RNA
Formation of protein from DNA and formation of RNA from protein
Formation of DNA from RNA and formation of protein from DNA
None of the above
- 2. Multiple Choice
State chargaff’s rule
Adenine=cytosine and guanine=thyamine
Adenine=thyamine and cytosine=guanine
Adenine=guanine and thyamine=cytosine
- 3. Multiple Choice
What is the function of tRNA
To synthesize protein
To help in replication
a binding site for RNA polymerase
To carry amino acids to ribosome
- 4. Multiple Choice
Who proposed the semiconservative nature of DNA
Fredrick griffith
Francis crick and watson
Darwin
Meselson and stahl
- 5. Multiple Choice
what is the full form of VNTR
Variable nucleus transfer repeat
valuable of number technology repeat
Variable number tandem repeats
none of the above
- 6. Multiple Choice
where translation takeplace
Ribosome
Nucleus
Cytoplasm
Mitochondria
- 7. Multiple Choice
What is the function of primer
to help DNA polymerase for initiation
To help RNA polymerase for initiation
To help DNA polymerase for termination
To help RNA polymerase for termination
- 8. Multiple Choice
What is the function of lactose in lac operon
to bind with repressor protein
To initiate the transcription
To synthesize structural genes
All of the above
- 9. Multiple Choice
What methionine code for
UGA
AUG
UAA
CGA
- 10. Multiple Choice
How introns are removed in eukaryotic cells
Silencing
Capping
Tailing
Splicing
- 11. Multiple Choice
What does DNA have that RNA doesn't
Presence of thymine
Presence of deoxyribose
Presence of ribose
Both a and b
- 12. Multiple Choice
The steps (rungs) of the DNA ladder are made up of __________.
phosphate groups
sugars
nitrogen bases
amino acids
- 13. Multiple Choice
Which of the following is true of DNA but not of RNA?
It is made up of a single strand of nucleotides.
It contains the sugar deoxyribose.
It leaves the nucleus to translate protein.
It contains the nitrogen base uracil.
- 14. Multiple Choice
What is the nature of the strands of the DNA duplex?
Anti-parallel and complementary
Identical and complementary
Anti-parallel and non-complementary
Dissimilar and non-complementary
- 15. Multiple Choice
DNA is a polymer made of ______
sugars
amino acids
fats
nucleotides
- 16. Multiple Choice
State chargaff’s rule
Adenine=cytosine and guanine=thyamine
Adenine=thyamine and cytosine=guanine
Adenine=guanine and thyamine=cytosine
- 17. Multiple Choice
What is the function of tRNA
To synthesize protein
To help in replication
a binding site for RNA polymerase
To carry amino acids to ribosome
- 18. Multiple Choice
Who proposed the semiconservative nature of DNA
Fredrick griffith
Francis crick and watson
Darwin
Meselson and stahl
- 19. Multiple Choice
where translation takeplace
Ribosome
Nucleus
Cytoplasm
Mitochondria
- 20. Multiple Choice
What is the function of primer
to help DNA polymerase for initiation
To help RNA polymerase for initiation
To help DNA polymerase for termination
To help RNA polymerase for termination
- 21. Multiple Choice
What is the function of lactose in lac operon
to bind with repressor protein
To initiate the transcription
To synthesize structural genes
All of the above
- 22. Multiple ChoiceIn a DNA strand the nucleotides are linked together by:glycosidic bondsphosphodiester bondspeptide bondshydrogen bonds
- 23. Multiple ChoiceA nucleoside differs from a nucleotide. It lacks the:basesugarphosphate grouphydroxyl group
- 24. Multiple ChoiceThe promoter site and the terminator site for transcription are located at:3' (downstream) end and 5' (upstream) end, respectively of the transcription unit5' (upstream) end and 3' (downstream) end, respectively of the transcription unitthe 5' (upstream) endthe 3' (downstream) end
- 25. Multiple ChoiceThe human chromosome with the highest and least number of genes in them are respectively:Chromosome 21 and YChromosome 1 and XChromosome 1 and YChromosome X and Y
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