Viruses that infect bacteria are referred to as
A. viralcidens.
B. bacteriocidins.
C. bacterialogens.
D. bacteriophages.
D
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Place these genes in their temporal order of expression from earliest to latest during Drosophila development.
A. Bicoid, Gap, Homeotic B. Homeotic, Gap, Bicoid C. Homeotic, Bicoid,Gap D. These genes are not expressed at different times during development. They are expressed at the same time, but in a different spatial order. E. Kruppel, gooseberry, even-skipped
If the regulation of hunger and thirst mechanisms goes haywire, the brain region that is most likely damaged is the
A. cerebrum. B. cerebellum. C. thalamus. D. hypothalamus. E. medulla oblongata.
Which one of the following statements about genomic imprinting is FALSE?
A. The DNA changes involved are reversible. B. It is considered an "epigenetic" change. C. It can occur in any gene. D. It takes place during gamete formation or early embryonic development. E. It affects the expression of a gene, not the gene itself.
Based on composition similarities, actin can be divided into two major groups: the muscle-specific actins (________-actin) and nonmuscle actins (________- and ________-actin)
Fill in the blank with correct word.