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Biology CH. 8 & 9 Test

Terms in this set (20)

How many pairs of autosomes are in a typical human karyotype?
22
The significance of Fred Griffith's experiment in which he used two strains of Streptococcus pneumoniae is that
it demonstrated that harmless bacteria can become transformed into disease-causing bacteria by bacteria a transformation factor.
The following questions should be answered using the figure above.

The above figure represents the research of which of the following researchers?
Hershey and Chase
The significance of the Hershey and Chase experiments in which 32P and 35S were used is that
they demonstrated that bacteriophages transfer their DNA, not their protein coats, into their hosts.
James Watson and Francis Crick
constructed an accurate model of the DNA molecule illustrating its structural simplicity.
DNA contains all of the following nitrogen-containing bases EXCEPT
uracil
Each DNA strand has a backbone that consists of alternating
sugar and phosphate molecules
DNA replication is
semiconservative
The following questions refer to the figure above.

The figure illustrates
semiconservative replication
Somatic cell nuclear transfer is a type of
adult cloning
The helix structure on the right of the above figure represents
RNA
____ molecules carry protein-assembly instructions from the nucleus to the cytoplasm.
Messenger RNA
Uracil will pair with
Adenine
Transcription starts at a region of DNA called a(n)
promoter
Which of the following dominates in the process of transcription?
RNA polymerase
The genetic code is made up of units consisting of how many nucleotides?
3
The following questions refer to the genetic code table above.

AUGCGUCCA
The sequence of amino acids specified by this mRNA is
methionine - arginine - proline.
Which of the following carries amino acids to ribosomes, where amino acids are linked into the primary structure of a polypeptide?
tRNA
Which event of translation is shown in the figure above?
initiation
Mutations can be
all of these
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