WorksheetsCentral Dogma of Molecular Biology
Total questions: 15
Worksheet time: 8mins
Where does translation take place?
cytoplasm
nucleus
ribosomes
mitochondria
A DNA codon consist of:
one nucleotide
two nucleotides
three nucleotides
four nucleotides
It is a process wherein DNA sequences are used to produce an RNA molecule.
Transmission
Transcription
Replication
Translation
The code for making proteins is carried to the ribosomes by _?
rRNA
tRNA
mRNA
DNA
All but one of the following are related to RNA. Which is it?
Ribose
Uracil
Thymine
Single strand
What is the final product of the Central Dogma of Molecular Biology?
RNA
Enzyme
Protein
Amino acid
In DNA, adenine always pairs with _?
uracil
thymine
guanine
cytosine
Which direction does genetic information flow during gene expression?
DNA -> Protein -> RNA
Protein -> RNA -> DNA
RNA -> Protein -> DNA
DNA -> RNA -> Protein
What is the enzyme that catalyzes the polymerization in the transcription process?
RNA polymerase
DNA ligase
DNA polymerase
RNA ligase
Which of the following statements is true about DNA?
All of our DNA is normally located in the nucleus of our cells.
DNA IS composed of amino acids, phosphates, sugars, and bases.
DNA replication occurs during meiosis but not mitosis.
At the beginning of protein synthesis, a section of a DNA molecule unwinds and unzips.
Arrange the sequence of transcription in its proper order:
I. mRNA leaves the nucleus and enters the cytoplasm.
II. The DNA information is transcribed into mRNA.
III. RNA polymerase reaches the terminator site, signaling the end of transcription.
IV. RNA polymerase binds to DNA, separating the DNA strand, and uses only one strand as a template.
IV-II-III-I
II-IV-III-I
IV-I-II-III
II-IV-I-III
Which of the following statements is true about DNA replication?
It is part of the protein synthesis process.
One DNA molecule becomes two identical ones as a result of this process.
It occurs during meiosis but not mitosis.
It happens in the ribosomes.
Arrange the events of translation in its proper order:
I. Elongation of polypeptide chain.
II. The protein is released to the cytoplasm and is ready for use.
III. mRNA attaches to a ribosome.
IV. tRNA locates and binds at the start codon.
V. The ribosome encounters a stop codon.
VI. The ribosomes moves through the mRNA and the tRNA carries anticodon with its corresponding amino acid.
IV-III-VI-I-V-II
I-II-III-IV-V-VI
IV-VI-III-I-V-II
III-IV-VI-I-V-II
Transcribe this DNA sequence: GCG CGT TTG TCG TCA AAG
CGC GCU UUC AGC AGU UUC
CGC GCT TTG TCG TCA AAG
CGC CGT UUC UGC TCU AAG
CGC GCA AAC AGC AGU UUC
Which of the following statements is true about the protein synthesis process?
When a section of a DNA molecule unwinds and unzips along its bases, a transfer RNA forms by copying one side of each DNA.
The transfer RNA leaves the nucleus and goes out to the ribosomes in the cytoplasm where proteins are assembled with the help of messenger RNA.
Both statements are false.
Both statements are true.
