Eleanor H
Quiz von , erstellt am more than 1 year ago

AS - Level Biology (Genetics) Quiz am Genome Projects and Gene Technologies, erstellt von Eleanor H am 31/03/2017.

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Eleanor H
Erstellt von Eleanor H vor mehr als 7 Jahre
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Genome Projects and Gene Technologies

Frage 1 von 7

1

What is a genome?

Wähle eine der folgenden:

  • A little creature possessing telepathic powers

  • An organism's entire genetic material

  • The entire genetic material for one gene

  • The nucleotide sequence of the introns

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Frage 2 von 7

2

Why is it useful to determine the proteomes of simple organisms?

Wähle eine oder mehr der folgenden:

  • To create better vaccines

  • To allow monitoring of pathogens in outbreaks of disease

  • So that we can alter our own genetics to make these proteins

  • To learn more about introns

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Frage 3 von 7

2

Why is it hard to translate the genome of complex organisms into their proteomes?

Wähle eine oder mehr der folgenden:

  • They have large sections of non-coding DNA

  • Their mRNA is hard to extract

  • They contain complex regulatory genes

  • Some genes are switched off so not all the possible proteins are made

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Frage 4 von 7

2

What are the benefits of the new sequencing methods compared to the original method devised by Frederick Sanger?

Wähle eine oder mehr der folgenden:

  • They are automated

  • They are done on a much smaller scale so they are faster

  • They cost less to do

  • They involve less chemicals

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Frage 5 von 7

1

Because DNA is , the recipient of recombinant DNA does not have to be of the same species as the donor.

Klicke und ziehe, um den Text zu vervollständigen.

    universal
    complementary
    degenerate
    antiparallel

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Frage 6 von 7

1

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

Making DNA fragments from mRNA
1. Extract target mRNA molecules from a cell that produces the required protein.
2. Mix the mRNA with free DNA nucleotides and ( reverse transcriptase, a restriction endonuclease, DNA ligase, DNA polymerase ).
3. The mRNA is used as a template for new strands of ( cDNA, tRNA, rRNA, miRNA ) to be synthesised that are complementary to it.

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Frage 7 von 7

3

digest the DNA at specific sequences. These sites are special because they are , meaning that they consist of base pairs.
Some types of this enzyme cut the DNA so that small tails of unpaired bases are created at each end of the fragment. These are called ends and can be used to DNA fragments together as long as the ends are complementary.

Klicke und ziehe, um den Text zu vervollständigen.

    Restriction Endonucleases
    Reverse Transcriptases
    recognition
    palindromic
    antiparallel
    sticky
    blunt
    anneal
    recconect
    digest

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