Quiz 13. Molecular Basis of Inheritance

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It includes Transcription

Name *

1 point

In translation the order and sequence of amino acids are defined by .....
*

1 point

Types of tRNA that carry amino acids

Specificity of rRNA involved

Enzyme peptidyle transferase

The sequence of bases in the mRNA

It is the process of polymerisation of amino acids to form a polypeptide
*

1 point

Transformation

Translation

Transcription

Transduction

Charging of tRNA includes all steps except one is *

1 point

Amino acids are activated in the presence of ATP

Charged amino acid linked to their cognate tRNA

Also known as aminoacylation of tRNA

All are correct

Find incorrect statement regarding to translation *

1 point

Formation of a peptide bond requires energy

In the first phase itself amino acids are activated in the presence of ATP

The presence of a catalyst would enhance the rate of peptide bond formation

The ribosome also acts as a catalyst

All are correct

Ribosome consists of *

1 point

Structural rRNA

Structural rRNA and 40 different proteins

Structural rRNA and 64 different proteins

Structural rRNA and 80 different proteins

23S rRNA in bacteria acts as the ....
*

1 point

Structural component

Cofactor

Coenzyme

Ribozyme enzyme

Amino acid sequence in protein synthesis is decided by the sequence of *

1 point

tRNA

mDNA

cDNA

mRNA

What is true about tRNA ? *

1 point

It has amino acid binding site at its 3' end

It has codon at one which recognize anticodon at mRNA

It looks like clover leaf like in tertiary structure

It is double stranded at 4 regions

Which of these set is used in translation ? *

1 point

rRNA, tRNA, snRNA

tRNA, hnRNA, mRNA

rRNA, mRNA, tRNA

mRNA, snRNA, hnRNA

Formation of peptide bond is *

1 point

Passive process

Active process

Partially active

Partially passive

Find incorrect statement *

1 point

23S rRNA acts as catalyst for peptide bond formation in bacteria

UTR are required for efficient translation process

UTR are located in between start codon and stop codon

Ribosome in inactive state, it exists as two separate unit

All are correct

Untranslated regions (UTR) are present *

1 point

After start codon and stop codon

After start codon and before stop codon

Before start codon and stop codon

Before start codon and after stop codon

Amino acids are added one by one, translated into Polypeptide sequences...... *

1 point

Dictated by DNA

Represented by mRNA

Both of the above

None of the above

In which of the process nucleic acid is not copied to nucleic acid ? *

1 point

Replication

Duplication of DNA

Transcription

Translation

Transcription and translation is coupled in *

1 point

Bacteria

Drosophila

Garden pea

Human cell

Which of the following acts as ribozyme for the peptide bond formation in bacteria ? *

1 point

28S rRNA

5.8SrRNA

23S rRNA

mRNA

The first phase of translation is *

1 point

Aminoacylation of amino acid

Recognition of mRNA

Binding of ribosome to mRNA

Recognition of DNA molecule

Against the codon 5' UAC 3' , what would be the anticodon on tRNA ? *

1 point

5' AUG 3'

3' AUG 5'

5' ATC 3'

3' ATG 5'

When the ............. encounters an mRNA, the process of translation of the mRNA to protein begins?
*

1 point

Large subunit of ribosome

Small subunit of ribosome

Ribosome as a whole

None of these

Which of the following biological process is catalysed by ribozyme ? *

1 point

DNA repair

Initiate mutation

Peptide bond formation

Splicing

Amino acid serine and tyrosine is coded by which codon om mRNA respectively ? *

1 point

AUG, UUU

UGA, AUG

AGU, UAC

UAC, UAA

Find incorrect statement *

1 point

There are two sites in the large subunit of ribosome

A translational unit in mRNA is flanked by the start codon and stop codon

At the end, a release factor binds to the stop codon, and terminates translation

All are correct

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