Molecular And Cellular Biology at University Of Huddersfield | Flashcards & Summaries

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Lernmaterialien für Molecular and Cellular Biology an der University of Huddersfield

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gene

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a DNA sequence
coding for the production of a functional RNA
or polypeptide chain

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Homozygous

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Having two identical alleles for a particular gene

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The DNA in a cell is in one or more physical
units called

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chromosomes


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In prokaryotes, there is no cap and translation can initiate internally at different sites where there is a specific sequence. This means 

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one mRNA may code for several proteins 

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polyA tail required for _ export from the nucleus, also regulates _ stability in the cytoplasm

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mRNA, mRNA

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Is the DNA of prokaryotic cells complexed with protein?

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No

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Ne is always _ than the real population size.

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smaller


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What is the fitness of an allele written as?

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W with a line over the top of it

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the study of genes, and the
inheritance of genes, at all levels from
molecules up to populations


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Genetics

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What are the areas which may cause problems with molecular clocks?

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- Changes in generation time within a group

- Changes in population size

- Species/lineage-specific rate changes

- Changes in protein function

- Changes in the intensity of natural selection

- Saturation

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Are neutral alleles subject to natural selection?

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No- their evolution is driven by genetic drift 

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What percentage of all nuclear transmission is POL1? (45S precursor rRNA)

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70

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Beispielhafte Karteikarten für deinen Molecular and Cellular Biology Kurs an der University of Huddersfield - von Kommilitonen auf StudySmarter erstellt!

Q:

gene

A:

a DNA sequence
coding for the production of a functional RNA
or polypeptide chain

Q:

Homozygous

A:

Having two identical alleles for a particular gene

Q:

The DNA in a cell is in one or more physical
units called

A:

chromosomes


Q:

In prokaryotes, there is no cap and translation can initiate internally at different sites where there is a specific sequence. This means 

A:

one mRNA may code for several proteins 

Q:

polyA tail required for _ export from the nucleus, also regulates _ stability in the cytoplasm

A:

mRNA, mRNA

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Q:

Is the DNA of prokaryotic cells complexed with protein?

A:

No

Q:

Ne is always _ than the real population size.

A:

smaller


Q:

What is the fitness of an allele written as?

A:

W with a line over the top of it

Q:

the study of genes, and the
inheritance of genes, at all levels from
molecules up to populations


A:

Genetics

Q:

What are the areas which may cause problems with molecular clocks?

A:

- Changes in generation time within a group

- Changes in population size

- Species/lineage-specific rate changes

- Changes in protein function

- Changes in the intensity of natural selection

- Saturation

Q:

Are neutral alleles subject to natural selection?

A:

No- their evolution is driven by genetic drift 

Q:

What percentage of all nuclear transmission is POL1? (45S precursor rRNA)

A:

70

Molecular and Cellular Biology

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