Which organisms would be part of a grazing food chain but not a detrital food chain?
a. herbivores
b. detritivores
c. bacteria
d. worms
e. producers
a
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The Calvin cycle requires all of the following except
A. carbon dioxide. B. oxygen. C. ATP. D. NADPH. E. water.
A cluster analysis is used when reading a DNA microarray to identify genes whose expression follow a similar patterns
Indicate whether the statement is true or false
Many types of bacteria are only ________ when dispersing from more stable and heterogeneous communities known as biofilms.
Fill in the blank(s) with the appropriate word(s).
A region of a chromosome contains two strands of DNA, yet only one is used to transcribe a gene because
A. both strands are transcribed, but only one strand of DNA contains a reading frame. B. all genes are found on the same strand of DNA in a chromosome. C. the start of transcription is random along the chromosome and doesn't always occur on a gene. D. RNA polymerase binds to the terminator, stopping transcription on one strand of DNA. E. RNA polymerase binds to the promoter, which precedes the gene only on the template strand of DNA.