chapter 10 Flashcards
(20 cards)
In the Griffith’s experiment, what was transferred from the S to the R strain?
DNA
The Hershey and Chase experiment relied upon the fact that proteins contain __________ and DNA does not, and that DNA contains ___________ that proteins do not.
sulfur, phosphorus
The Hershey-Chase experiment showed conclusively that:
DNA is the genetic material
Nucleotides are composed of:
sugar, phosphate, and a nitrogenous base
The second step of elongation involves:
polypeptide transferred to tRNA at the A site
polypeptide transferred to tRNA at the A site
Which one of the following is NOT a criterion that genetic material must have?
able to undergo constant change
The work of Chargaff led to the discovery of what phenomenon critical to DNA structure?
complementary base pairing
The disease, cystic fibrosis, is a result of a heritable:
frameshift mutation
Watson and Crick based their double helix structure of DNA on what data?
X-ray crystallography
DNA replication refers to:
the process of copying DNA molecules
Which one of the following is NOT necessary for DNA replication?
DNA primer
The “one gene, one protein” hypothesis was first shown to be true by:
Beadle and Tatum
Beadle and T atum
Corn ears with multi-colored kernels are the result of the activity of ____________.
transposons
The genetic code consists of:
triplet nucleotides
Which one of the following is NOT a property of the genetic code?
each codon codes for more than one amino acid
Transcription can be defined as:
the process of making mRNA from DNA
The function of the polyA tail during RNA processing is:
protect mRNA from hydrolytic enzymes
The wobble hypothesis states that:
wobble in the third nucleotide of the anticodon allows some tRNAs to bind to more than one codon
rRNA is produced in the _______________ with _______________ as a template.
nucleolus, DNA
The first step of translation is known as:
initiation
