In the multiple allelic system for eye color in Drosophila, the phenotypic expression of the alleles depends on
A) how much pigment is produced by the alleles present.
B) the interaction of alleles from two different genes.
C) the temperature at which the flies are grown.
D) the sex of the fly.
E) Both A and B
A
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The alarm rings again; you hit the snooze button, but it is broken; you try to ignore the ringing, but that
sound is activating which of the following brain regions or functional groups of neurons?
a. limbic system b. reticular formation c. blood brain activator d. resonance tomography system e. hippocampus
The exchange of gases with the respiratory
medium by animals occurs through the process of:
1.Active transport 2.Diffusion 3.Osmosis 4.Countercurrent exchangeMost carbon dioxide is transported in the blood in the form of bicarbonate
____________________ Indicate whether the statement is true or false.
Suppose a new form of DNA polymerase III is discovered that does not require a primer to begin synthesis of a new strand. All other properties of the enzyme remain unchanged. If this new enzyme were to be expressed in the same organism that normally expresses DNA polymerase III, what would no longer be necessary to completely replicate all of the cellular DNA?
A. DNA helicase B. telomerase C. DNA polymerase I D. DNA ligase E. single strand-binding protein