Controlling Gene Expression
What will be an ideal response?
•Constitutive expression: genes expressed at the same level under all conditions.
•Regulated expression: genes transcribed under only certain conditions.
•How can bacteria manipulate expression levels?
-One common way: by promoting (with sigma factors and activators) or inhibiting (with repressors) RNA polymerase activity.
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Achondroplasia, a hereditary form of dwarfism, is an autosomal dominant disorder; however homozygous dominant
individuals either die before birth or very shortly thereafter. The homozygous recessive condition is normal. A dwarf couple decide to have children. Use this information to answer the following question:Of the children of this couple who survive, what is the probability that they will be normal?
a. 0 b. ¼ c. 1/3 d. 2/3 e. ½
According to the Linnaean system of classification, the organism Acetabularia mediterranea is most closely related to
A. Mediterranea crassa. B. Acetabularia crenulata. C. Mediterranea crenulata. D. Crenulata acetabularia.
A (colony/habitat/biofilm) is a mixed population of microbes growing together on surfaces
What will be an ideal response?
Coxiella burnetii is transmitted to humans mainly via the bite of infected tick vectors
Indicate whether the statement is true or false