Some diseases are linked to the under or over expression of specific genes. A particular cancer is characterized by the overexpression of a gene. Do you predict the histones associated with this gene to be acetylated? Describe why this would lead to
increased gene expression and how histone acetyl transfer (HAT) and histone deacetylase (HDAC) could be involved.
What will be an ideal response?
One would predict that since this gene is overexpressed that the histones are acetylated. Therefore, HAT is working or perhaps over active and HDAC is not working properly. When histones are acetylated, the histones will relax their association with the DNA allowing the gene to be more likely expressed.
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In 1977 Dr. Robert Ballard and J.F. Grassle discovered
a. underwater seamounts. b. the midocean ridge. c. the Titanic. d. rift communities. e. the Andrea Doria.
The most primitive of the current reptiles based upon
the time of divergence from the stem reptiles are the a. crocodiles. b. snakes. c. tuataras. d. lizards. e. turtles.
During an adiabatic compression of an ideal gas
What will be an ideal response?
Then, Mendel crossed the true breeding pea plants that he wanted to study. He called this generation the _______ or __ generation.
Fill in the blank(s) with the appropriate word(s).