Eleanor H
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AS - Level (Genetics) Biology Test sobre Genome Projects and Gene Technologies, creado por Eleanor H el 31/03/2017.

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Genome Projects and Gene Technologies

Pregunta 1 de 7

1

What is a genome?

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 2 de 7

2

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

Selecciona una o más de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 3 de 7

2

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

Selecciona una o más de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 4 de 7

2

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

Selecciona una o más de las siguientes respuestas posibles:

  • They are automated

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

  • They cost less to do

  • They involve less chemicals

Explicación

Pregunta 5 de 7

1

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

Arrastra y suelta para completar el texto.

    universal
    complementary
    degenerate
    antiparallel

Explicación

Pregunta 6 de 7

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

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.

Explicación

Pregunta 7 de 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.

Arrastra y suelta para completar el texto.

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

Explicación

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