Transcriptomics requires the isolation of RNA to generate sequence data. If a scientist wants to use next-generation sequencing to perform their experiment which of the following is necessary?
A) protein quantification B) reverse transcriptase
C) heterochromatin D) euchromatin
Answer: B
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DNA replication is
A) conservative. B) dispersive. C) semiconservative. D) irregular. E) none of the above
If all the meiofaunal organisms were eliminated from a sandy beach, how would that affect the habitat and the trophic structure of the beach?
What will be an ideal response?
How is glucose involved in catabolite repression of the lac operon?
A) Glucose causes cAMP levels to increase, which leads to increased CRP binding and the lac operon is activated even when lactose is present. B) Glucose causes cAMP levels to decrease, which leads to decreased CRP binding and the lac operon is repressed even when lactose is present. C) Glucose is also a substrate for ?-galactosidase and thus competes with lactose for this enzyme. D) Glucose activates transcription of the lacI gene to increase the amount of Lac repressor in the cell.
Color blindness is an X-linked recessive gene. Two
normal-vision parents produce a color-blind child. (a) Is this child male or female? (b) What are the genotypes of the parents? (c) What are the chances that their next child will be a color-blind daughter? What will be an ideal response?