A class of gene in multicellular eukaryotes called piwi (the name derives from a Drosophila gene called P-element induced wimpy testis) encodes regulatory proteins involved in maintaining incomplete differentiation and stable cell division in germ-
line and stem cells. PIWI proteins represent a clade within a larger familythat includes ______________ proteins.
A. ENCODE
B. Argonaute
C. Dicer
D. Drosha
B
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Which term refers to the process in which DNA can be introduced into host bacterial cells?
What will be an ideal response?
Punnett Square
What will be an ideal response?
When mosquitoes are abundant, purple martins flock to the area and feed exclusively on them. When mosquito populations are not large, purple martins are similarly scarce and feed on other insects. This is an example of
A) density-dependent regulation. B) exotic regulation. C) ecosystem carrying capacity. D) density-independent regulation. E) community carrying capacity.
Which part of the genome is affected by cancer-causing alterations to cellular DNA?
a) Introns. b) Oncogenes. c) Exons. d) Promoters.