Molecular Genetics

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The first step in the polymerase chain reaction (PCR) is

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In a polymerase chain reaction, a synthetic sequence of nucleotides are involved in

1

Bacteria protect themselves from viruses by fragmenting viral DNA upon entry with

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When "sticky ends" are paired, they can be joined by

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One of the most useful methods for identifying a specific gene is

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The Polymerase Chain Reaction is used to:

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When tryptophan is present in the medium, the transcription of tryptophan producing genes in E. coli is stopped by a helix-turn-helix regulator binding to the

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When tryptophan is present in the environment of E. coli, the tryptophan binds to the

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The operon that controls tryptophan producing genes in E. coli consists of _______________

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In order for a gene to be transcribed, RNA polymerase must have access to the DNA helix and be able to bind to the genes

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In the function of the lac operon in E. coli, the lac genes are transcribed in the presence of lactose because

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The role of methylation of DNA is now viewed as

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E. coli is able to use foods other than glucose in the absence of available glucose, because falling levels of glucose cause an increase of

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In the absence of glucose, E. coli can import lactose to change into glucose and galactose because CAP binds to the

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Which is not part of the lac operon?

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In an operon the location of the regulatory region occurs ________ the structural genes.

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Which of the following is part of an operon?

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Transcription is initiated when RNA polymerase binds to

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In eukaryotes, there are _______________ codons that specify amino acids

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In eukaryotes, the "start" codon also specifies the amino acid,

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In transcription, the nucleotide sequence CAT in DNA would specify _______________ in mRNA.

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The genetic code consists of groups of three nucleotides called

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The function of tRNA is to

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In the formation of an initiation complex, a _______________ is positioned first.

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The function of mRNA is to

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The process of _______________ cuts introns from the primary transcript and the final "processed" mRNA is produced.

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In the process of translation,

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In mRNA, the series of nucleotides CCC specifies

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A molecule of tRNA with the anticodon AAA will transport the amino acid

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As polypeptides are formed at the ribosome, elongation continues until _______________ is exposed.

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Which one of the following is not a kind of RNA?

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The direct result of transcription is

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The direct result of translation is

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Which one of the following is not associated with transcription?

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Which one of the following is not associated with translation?

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According to Chargaff's rule, the following proportion exists in DNA

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The actual synthesis of DNA in E. coli is the function of

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Since the first nucleotides cannot be linked in a newly synthesized strand in DNA replication, ___________ is required.

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The fact that some viruses use DNA to direct their heredity was demonstrated by

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Okazaki fragments are used to elongate

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In nucleic acids, the free hydroxyl group is attached to the _______________ carbon of the sugar.

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A single enzyme is specified by a single

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In replication of DNA, the helix is opened and untwisted by

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_______________ join DNA fragments to the lagging strand

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Which statement about the elongation of the lagging strand during DNA replication is correct?

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If one side of a DNA molecule contains the following sequence of nucleotides, AGTCCG, the complementary sequence on the other side would be:

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During your summer job at Virotech, you isolate a previously unknown virus. Analysis of its genome reveals that it is composed of a double stranded DNA molecule containing 14% T (thymine). Based on this information, what would you predict the %C (cytosine) to be?

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The process of acquiring a gene from another organism is called transformation.

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The Hershey-Chase experiment showed that the virus protein is responsible for directing the production of new viruses.

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The two sides of the double helix structure of DNA are held together with hydrogen bonds.

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DNA replication is called semiconservative because half of each of the two new strands of DNA is "old" DNA from the original DNA molecule and half is "new" DNA.

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Genetic engineering has been used to do all of the following except:

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According to Mendel, which of the following cause an organism's size, colour and markings?

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Which term is associated with eukaryotic DNA?

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If 28% of a segment of DNA is composed of guanine, how much of the segment is adenine?

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How did the work of Franklin and Wilkins contribute to the discovery of the structure of DNA?

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Which of these findings made Watson and Crick confident that their DNA model was correct?

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What would have been the results of Meselson and Stahl's experiment if DNA had undergone conservative replication?

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Which characteristics of the structure of DNA results in a lagging strand and a leading strand during DNA replication?

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What is the function of DNA ligase in replication?

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Which method do prokaryotes use to compact DNA?

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Where are telomeres located?

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What is the name of Beadle and Tatum's original hypothesis?

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What is the sequence of information transfer, as outlined by the central dogma?

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Where is the TATA box found?

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What happens during capping and tailing?

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How is the lac operon inhibited?

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Which term refers to a point mutation that results in a different amino acid in a particular position?

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What is the molecular tool scientists use to cut a DNA fragment from a larger piece of DNA?

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After excising a DNA fragment that contains a target gene, what should a molecular biologist do?

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Which chemical compound can be used to stain a completed electrophoresis gel?

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Test sobre Molecular Genetics, creado por Nadia Siddique el 17/01/2016.

Molecular Genetics

The first step in the polymerase chain reaction (PCR) is

In a polymerase chain reaction, a synthetic sequence of nucleotides are involved in

Bacteria protect themselves from viruses by fragmenting viral DNA upon entry with

When "sticky ends" are paired, they can be joined by

One of the most useful methods for identifying a specific gene is

The Polymerase Chain Reaction is used to:

When tryptophan is present in the medium, the transcription of tryptophan producing genes in E. coli is stopped by a helix-turn-helix regulator binding to the

When tryptophan is present in the environment of E. coli, the tryptophan binds to the

The operon that controls tryptophan producing genes in E. coli consists of _______________

In order for a gene to be transcribed, RNA polymerase must have access to the DNA helix and be able to bind to the genes

In the function of the lac operon in E. coli, the lac genes are transcribed in the presence of lactose because

The role of methylation of DNA is now viewed as

E. coli is able to use foods other than glucose in the absence of available glucose, because falling levels of glucose cause an increase of

In the absence of glucose, E. coli can import lactose to change into glucose and galactose because CAP binds to the

Which is not part of the lac operon?

In an operon the location of the regulatory region occurs ________ the structural genes.

Which of the following is part of an operon?

Transcription is initiated when RNA polymerase binds to

In eukaryotes, there are _______________ codons that specify amino acids

In eukaryotes, the "start" codon also specifies the amino acid,