Molecular Genetics
Molecular Genetics / Nucleic acids / DNA replication&transcription / Genetic code / mRNA translation
Molecular Genetics / Nucleic acids / DNA replication&transcription / Genetic code / mRNA translation
What is the name of the enzyme responsible for ….. the DNA molecule for replication
Which of the following are correctly associated:
The enzyme called peptidyl transferase catalyzes the formation of:
Indicate the correct stages of chromatin condensation:
The genetic code is commaless because:
A, B, C and D in the picture represent
…. DNA transcription occurs in:
The enzyme catalysing the attachment of an amino acids to the tRNAs …:
In the picture below arrows number 1 indicate template strands the other number are:
At which position of the deoxyribose ring is the nitrogenous base attached:
C4: phosphate group
ATTThe triplet base sequence in DNA template strand that is translated into a stop codon is:
The lac repressor protein binds to the operator region:
Which of the following are not correctly associated:
The result of the transcription process is:
Which of the following statements is true:
The operator gene of the lac operon:
RNA molecule is:
The other name of the prokaryotic elongation factor EF-G:
The enzyme of RNA polymerase participates in which process?:
The genetic code is non-overlapping because:
RNA is
Where are proteins synthesized in a eukaryotic cell?
The codons UAA, UAG and UGA all code for
With the exception of tryptophan and methionine, each amino acidis coded for by more than one codon. Therefore the genetic code is called
Anticodon is found on:
The entire genetic code consists of ___ amino acids and ___ codons
Which compunds are bonded together to make polypeptides?
Meselson and Stahl proved that
In Prokaryotes DNA transcription occurs in
At the beginning of the DNA transcription, RNA polymerase binds to
The longest molecule in our cells are
Which of the following statements is true about the protein synthesis process?
The elongation of a polypeptide chain continues until
Lactose operon is an example of
Transcription occurs along a (1) template strand forming an mRNA molecule in the (2) direction
(1) 3' to 5' ; (2) 5' to 3'
The process in which ribosomes are involved is
During translation, the ___ site within the ribosome holds the growing amino acid chain while the ... site holds the next amino acid to be added to the chain
Reverse transcription is the process in some viruses by which ___ is synthesized from ___
How does the presence of lactose cause the lac operon to be transcribed?
Okazaki fragments occur on the ___ and are bonded together by ___
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Flashcards
Which of the following statements about enhancers is TRUE?
DNA methylation of genes
Which of the following are NOT matched correctly?
Nucleosomes are packed together with the aid of
EF-Tu and EF-Ts factors are involved in the process of
A mRNA is 336 codons long, including the start and the stip codons. The number of amino acids in polypeptide chain initailly translated from the mRNA is
What is this?
A murder has occured and you are asked to help solve it. The police bring you a sample from the crime scene of what they believe is the killer's DNA and ask you for a chemical analysis. Your study of this sample reveals the presence of adenine, thymine, ribose and uracil. Which of the following is the best conclusion to draw from these results?
Okazaki fragments are formed because
The Rho protein is involved in:
Centromere and telomeres are composed of:
Anticodon loop contains:
The two-step reaction shown below is carried by:
Step 1: amino acid + ATP à aminoacyl-AMP + PP
Step 2: aminoacyl-AMP + tRNA à aminoacyl-tRNA + AMP
Which of the following proteins take part in the process of DNA replication:
The enzyme that breaks hydrogen bonds and unwinds DNA during the process of transcription is
To begin DNA replication in Prokaryotes, what protein first binds to DNA:
What RNA strand would be produced from the following DNA template strand? 3’-CCTCATGGC-5’
Indicate correct statement about the so-called linker DNA:
Core particle of a nucleosome consists of:
The initiator aminoacyl-tRNA is:
Nucleosome consists of:
Which one is correct matching:
Indicate incorrect statement about DNA replication:
The process in which EF-Tu and EF-Ts …. Are involved is:
The picture shows:
The illustration demonstrates:
Name the molecules marked as A and B:
DNA helicase is involved in:
Eukaryotic RNA polymerase I transcribes:
The structure which ”divides” the chromosome into two arms is called:
So-called ”core particle” of the nucleosome consists of 145-147 …. Around:
Enzyme that adds complementary nucleotides to the growing DNA strand during replication is:
The ”rule of complementations” states that:
The process of the mRNA translations finishes
How many tRNA molecules are present in one cell:
Where in your cells would you find the DNA?
The production of RNA copies of the DNA is called …….., and is performed by ….., which adds one RNA nucleotide at a time to a growing RNA strand:
A(n) _______________ Is a place of DNA with a group of genes that are transcribed together as a unit:
Euchromatin is:
The following codons can act as STOP-codons:
