Most of Earth's mass of living organisms consists of which of the following?
What will be an ideal response?
Plankton
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?-galactosidase is used in bacterial screening assays for visualization of colonies that contain recombinant DNA. What
is its substrate?
a. lactose b. X-gal c. sucrose d. lacZ e. agarose
Break down of the corpus luteum coincides
with a ____ levels if pregnancy does NOT occur. a. decline in chorionic gonadotropin b. decline in LH c. surge in progesterone d. spike in LH e. spike in extrogen
Genomic imprinting is caused by epigenetic changes to DNA Indicate whether the statement is true or false
Answer the following questions true (T) or false (F)
1. The genome of all DNA animal viruses is replicated in the nucleus of the cell. 2. Bacteriophage release is a gradual process in which small numbers are released at a time. 3. Bovine spongiform encephalopathy is an example of a prion disease.