Transcription

Q.

Write about transcription, translocation and translation.

Q.

Which is smaller gene or DNA?

Q.

What is the role of ribosomes in translation?

Q.

If the sequence of bases in DNA is ATTCGATG then the sequence of bases in its transcript will be

1. GUAGCUUA

2. AUUCGAUG

3. CAUCGAAU

4. UAAGCUAC

Q. Removal of introns and joining of exons in a defined order during transcription is called

1. Splicing
2. Looping
3. Inducing
4. Slicing

Q.

What kind of bonds are present between the two polynucleotide chains?

Q. Which of the following is produced by the process of transcription?

1. 
   RNA
2. 
   mRNA
3. 
   rRNA
4. 
   tRNA

Q.

How is double-stranded RNA formed?

Q.

What happens if an intron is not removed?

Q. Segments of mRNA removed during splicing are ________.

1. Exons
2. Introns
3. Promoter regions
4. Integrator regions

Q. Where is the mRNA formed in a cell, during the process of transcription?

1. Mitochondria

2. Nucleus

3. Ribosomes

4. Cytoplasm

Q.

Is RNA polymerase a protein?

Q. Transcription takes place in the _________ and translation occurs in the _______.
A. cytoplasm, nucleus
B. nucleus, mitochondria
C. ribosome, nucleus
D. nucleus, cytoplasm (1 marks)

Q. Which of these are parts of the transcription unit?

1. Terminator
2. Promoter
3. Introns
4. Exons

Q. The process of transcription involves:

1. RNAase

2. Endonuclease

3. RNA polymerase

4. DNA polymerase

Q.

Ribosomes are sites of which reaction?

Q. In the base sequence, one strand of DNA is CAT, TAG , CAT, GAC. What would be the base sequence of its complementary mRNA?

1. GUA, GUA, CUG, AUC, CUG
2. AUG, CUG, CUC, GUA, CUG
3. GUA, AUC, GUA, CUG
4. GUC, CUG, CUG, CUA, CUU

Q. Which of the following is produced by the process of transcription?

1. 
   RNA
2. 
   mRNA
3. 
   rRNA
4. 
   tRNA

Q. Choose the correct pair.

1. Ribosome
2. RNA polymerase
3. Protein
4. Helicase
5. Unwinds DNA
6. Adds nucleotides

Q. Which of the following is not a pyrimidine?

1. Thymine
2. Uracil
3. Guanine
4. Cytosine

Q. Which of the following statements is/are correct regarding transcription in humans?

1. Genetic information is copied from RNA to DNA.
2. Both the DNA strands of the double helix serve as templates for transcription.
3. The whole length of the template strand gets copied at one go.
4. Transcription takes place in the nucleus of the cell.

Q.

A DNA strand is directly involved in the synthesis of all of the following except:

1. DNA molecule

2. Protein synthesis

3. mRNA molecule

4. tRNA molecule

Q. Transcription takes place in the ____.

1. Nucleus
2. Cytoplasm
3. Ribosome
4. Mitochondria

Q. Transcription involves

1. Synthesis of RNA from DNA
2. Joining of amino acids in a polypeptide
3. Synthesis of RNA from ribosome
4. Synthesis of DNA from RNA

Q.

If the sequence of bases in DNA is ATTCGATG then the sequence of bases in its transcript will be

1. GUAGCUUA

2. AUUCGAUG

3. CAUCGAAU

4. UAAGCUAC

Q. The process of transcription involves:

1. Endonuclease

2. RNA polymerase

3. DNA polymerase

4. RNAase