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Ch 12 Biology test

QuestionAnswer
what scientist did the experiment with the mice? fredrick griffith
transforming factor is a ______________? gene
What scientist tested the transforming ability of the 4 macromolecules? oswald avery
What macromolecule caused transformation nucleic acid
What did avery discover? DNA stores and transmits genetic information from one generation of bacteria to the next
What year did fredrick griffith conduct his experiment? 1928
What year did avery conduct his experiments? 1944
What scientists further tested averys work? Alfred Hershey and Martha Chase
If they found sulfur radioactivity inside the bacterial cell the ___________________had been injected. [protein coat]
If they found phosphorus radioactivity inside the bacterial cell the _______________ had been injected. [DNA core]
What did Hershey and Chase use to label protiens and DNA in bacteriophages? radioactive markers
Bacteriophages do what? it attaches to the surface/membrane of the bacterial cell and injects its genetic material into it.
Genetic Material is found in what? genes
What is the role of DNA storing, copying, transmittingDNA information
What is the monomer of a nucleic acid nucleotide
What scientist came up with the idea that A=T and C=G? Erwin Chargraff
Who came up with the original idea of the structure of DNA? Rosalind Franklin
What two scientists stole franklins work? James Watson and Francis Crick
Who helped watson and crick? Maurice Wilkins
What bonds hold the backbones together? hydrogen bonds
the strands are said to be complementary... Because each strand can be used to make the other strand
Through which process does DNA copy itself replication
What do the two DNA strands unzip with? helicase
DNA polymerase enzyme that joins individual nucleotides to produce a new strand of DNA
Telomeres tips of the chromosome
telomerase is used for what? to prevent pieces being lost
The cells of most prokaryotes have_______________________ molecule in the cytoplasm single circular DNA
What is the DNA molecule in prokaryotes known as? plasmid
In eukaryotic cells, replication may begin at ________________ or ________________ of places on the DNA molecule, dozens or hundreds
Created by: Brielle Tav.
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