19 Questions
Which type of nucleic acid is the primary carrier of hereditary information?
Deoxyribonucleic acid (DNA)
Who demonstrated that DNA composition varies from one species to the next?
Chargaff
What is the concept of heredity and 'genes' predating acceptance of DNA as the mechanism referred to as?
Pre-genomic inheritance
Which carbon sugar is present in DNA nucleotides?
Deoxyribose
What method did Rosalind Franklin and Maurice Wilkins use to investigate the structure of DNA?
X-ray diffraction
What are the monomers making up the polymers of nucleic acids called?
Nucleotides
Which nitrogenous base always pairs with thymine in DNA?
Adenine (A)
For what purpose did Chargaff's rules serve as evidence?
'Genetic material' made credible candidate for diversity
What is the central dogma of molecular biology?
'DNA makes RNA makes protein'
What did the 1962 Nobel Prize in Physiology and Medicine recognize?
Research on DNA structure using X-ray diffraction
What is the primary structure of DNA?
The sequence of the bases in DNA
Which process helps to protect DNA from damage and allows chromosomes to be mobile during cell division?
Supercoiling of chromatin
What is the function of nucleosomes in DNA?
To wrap the DNA helix around histone proteins
Which protein is responsible for linking nucleosomes to form a string of chromatosomes?
Histone H1
What is the major factor stabilizing DNA structure?
Base pairing
What is the primary role of histones in relation to DNA?
To coil DNA around proteins
What is the function of dNTPs in DNA synthesis?
Addition of dNTPs forms phosphodiester linkages
'Right handed helix, B DNA' refers to the ________.
Secondary structure of DNA
'Chromatin will then supercoil during cell division to form chromosomes that are visible (when stained) under microscope' is an example of __________.
'From DNA to chromosomes' process
Learn about the composition of DNA, the complex folding of DNA, DNA replication, and the enzymes involved in DNA replication through this lecture. Understand the central dogma of molecular biology and the concept of heredity and genes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
