Molecular Genetics at University Of Ghana | Flashcards & Summaries

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Lernmaterialien für molecular genetics an der University of Ghana

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TESTE DEIN WISSEN
Why does RNA not obey Chargaff's rule?
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TESTE DEIN WISSEN
RNA is single stranded. Hence there can't be base pairing as supposed to be in DNA
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TESTE DEIN WISSEN
Why should DNA strands be complementary?
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TESTE DEIN WISSEN
When complementary it allows the DNA to replicate itself
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TESTE DEIN WISSEN
Function of DNA gyrase
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TESTE DEIN WISSEN
It ensures that the double strands outside the replication fork does not coil
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TESTE DEIN WISSEN
Why is DNA the genetic material?
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TESTE DEIN WISSEN
DNA is the genetic material because it has a deoxyribose sugar. (ie one less oxygen containing hydroxyl group on the 2' carbon) which makes it more stable as compared to RNA which has a hydroxyl group on the 2' carbon. This helps the molecule to keep genetic information safe.
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TESTE DEIN WISSEN
State the function of DNA
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TESTE DEIN WISSEN
DNA carries genetic instructions for the growth, development, functioning and reproduction of all known organisms and many viruses.
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TESTE DEIN WISSEN
Adenine pairs with which nitrogenous base?
And how many hydrogen bonds are between them?
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TESTE DEIN WISSEN
Adenine pairs with Thymine
There are 2 hydrogen bonds between them.
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TESTE DEIN WISSEN
What is the distance between 2 adjacent base pair?
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TESTE DEIN WISSEN
0.3nm
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TESTE DEIN WISSEN
Phosphodiester bond links the phosphate group and the ribose sugar 
True or false?
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TESTE DEIN WISSEN
True
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TESTE DEIN WISSEN
Which is the genetic material?
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TESTE DEIN WISSEN
DNA
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TESTE DEIN WISSEN
Nitrogenous bases can be divided into how many parts?
Name them.
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TESTE DEIN WISSEN
Purines
Pyrimidines
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TESTE DEIN WISSEN
State the parts of a nucleotide.
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TESTE DEIN WISSEN
  •  Nitrogenous base
  • Deoxyribose sugar
  • Phosphate group
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TESTE DEIN WISSEN
Name two scientists and their contributions to the discovery of DNA.
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TESTE DEIN WISSEN
  • Rosalind Elsie Franklin.( 1952)
She obtained an X- ray Diffraction that suggested DNA is a helix.
  • Erwin Chargaff. ( 1950)                           

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  • 255 Studierende
  • 1 Lernmaterialien

Beispielhafte Karteikarten für deinen molecular genetics Kurs an der University of Ghana - von Kommilitonen auf StudySmarter erstellt!

Q:
Why does RNA not obey Chargaff's rule?
A:
RNA is single stranded. Hence there can't be base pairing as supposed to be in DNA
Q:
Why should DNA strands be complementary?
A:
When complementary it allows the DNA to replicate itself
Q:
Function of DNA gyrase
A:
It ensures that the double strands outside the replication fork does not coil
Q:
Why is DNA the genetic material?
A:
DNA is the genetic material because it has a deoxyribose sugar. (ie one less oxygen containing hydroxyl group on the 2' carbon) which makes it more stable as compared to RNA which has a hydroxyl group on the 2' carbon. This helps the molecule to keep genetic information safe.
Q:
State the function of DNA
A:
DNA carries genetic instructions for the growth, development, functioning and reproduction of all known organisms and many viruses.
Mehr Karteikarten anzeigen
Q:
Adenine pairs with which nitrogenous base?
And how many hydrogen bonds are between them?
A:
Adenine pairs with Thymine
There are 2 hydrogen bonds between them.
Q:
What is the distance between 2 adjacent base pair?
A:
0.3nm
Q:
Phosphodiester bond links the phosphate group and the ribose sugar 
True or false?
A:
True
Q:
Which is the genetic material?
A:
DNA
Q:
Nitrogenous bases can be divided into how many parts?
Name them.
A:
Purines
Pyrimidines
Q:
State the parts of a nucleotide.
A:
  •  Nitrogenous base
  • Deoxyribose sugar
  • Phosphate group
Q:
Name two scientists and their contributions to the discovery of DNA.
A:
  • Rosalind Elsie Franklin.( 1952)
She obtained an X- ray Diffraction that suggested DNA is a helix.
  • Erwin Chargaff. ( 1950)                           

molecular genetics

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