DNA Basics

Descripción

Bachelors Degree Clinical Biochemistry and Molecular Genetics Test sobre DNA Basics, creado por Sarah Juliette B el 01/02/2016.
Sarah Juliette B
Test por Sarah Juliette B, actualizado hace más de 1 año
Sarah Juliette B
Creado por Sarah Juliette B hace casi 9 años
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Resumen del Recurso

Pregunta 1

Pregunta
What is the process of genetic information being copied from DNA into messenger RNA (mRNA)?
Respuesta
  • Replication
  • Translation
  • Transcription
  • Gene Expression

Pregunta 2

Pregunta
The pyrimidines are cytosine and thymine.
Respuesta
  • True
  • False

Pregunta 3

Pregunta
What makes up a DNA molecule?
Respuesta
  • Ribose Sugar
  • Base
  • Phosphate Group
  • Deoxyribose Sugar
  • Acid

Pregunta 4

Pregunta
What bonds join the phosphate and sugar molecules in DNA?
Respuesta
  • Phosphoester
  • Phosphodiester
  • Hydrogen
  • Ionic

Pregunta 5

Pregunta
Which of these statements are correct?
Respuesta
  • The number of adenine bases never equals the number of thymine bases.
  • Deoxyribose sugar is missing an oxygen atom at it's 2' position.
  • G-C pairs are more thermodynamically stable than A-T pairs.
  • DNA is a left-handed double helix.
  • Bases are bonded together by hydrogen bonds.

Pregunta 6

Pregunta
Unwinding of the double helix is accomplished by the enzyme helicase.
Respuesta
  • True
  • False

Pregunta 7

Pregunta
What direction is DNA synthesised in?
Respuesta
  • 5' to 3' direction.
  • 3' to 5' direction.

Pregunta 8

Pregunta
What are the names of the short DNA segments in DNA replication which are ligated together by DNA ligase?
Respuesta
  • Lagging fragments.
  • Bases.
  • Okazaki fragments.
  • Primer sequences.
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