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19 Cards in this Set

  • Front
  • Back
What is transformation?
Heritable change in a cell or an organism brought about by exogenous DNA.
In ______, receptor sites on bacteria take up DNA from their environment and single strands are incorporated into te genome.
Transformation, a process of gene transfer.
___________ must be activated along with proto-oncogenes to halt cell division.
Oncogenes
The mutation that causes cystic fibrosis is usually due to a deletion of _____ amino acid, ___________________.
one: phenylalanine
What does cystic fibrosis affect?
Affects pancreas, lungs, reproductive organs, liver.
Meselson and Stald were the scientists that discovered that ______________.
Discovered that DNA replication is semi-conservative.
Two consensus DNA sequences that exist upstream from coding regions of some eukaryotic genes are _____________.
TATA and CAAT
What is the function of eukaryotic transcription factors?
Recognize sequences within the enhancer and promotor regions and activate transcription.
A cDNA library is ____.
A library created using poly A containing mRNA molecules from a certain cell type.
In what process does this sequence occur:

DNA replication; crossing-over; independent assortment; sister chromatids pulled apart
gamete production
nucleosomes

H2A, H2B, H3 & H4 histones & DNA
The DNA of eukaryotes is organized into repeating interactions with protein octomers called ______. These are made up of _____ molecules.
Polygenic or quantitative inheritance
many genes influence the development of a characteristic in plants, such as height
polygenic/quantitative traits are hard to study because
the genes involved rarely contribute equally to the trait, and the environment affects trait expression
what is the chance of a couple, both heterozygous for a recessive allele a, having two of three children that are aa?
9/64
How many hydrogen bonds would form between the DNA sequence ATTG and its complement on the other strand of the double helix?
9: A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.
Repetitive DNA reanneals more _____ than unique sequences during hybridization experiments.
more quickly
T/F: Repetitive DNA is coding.

It's found in telomeres and centromeres.
F Repetitive DNA is non-coding.

It is found in ________.
Alu sequences represent ________.
Repetitive DNA is represented by _______ sequences in humans.
In 1964, _____________ used the triplet binding assay to determine specific coding assignments.
Nirenber and Leder trapped a complex of charged tRNA, RNA triplet and ribosome on a nitrocellulose filter for ________.