What is the name of the field that is revealing and describing much of the invisible living world by sequencing all of the DNA in a particular habitat?
A) Stem cell science
B) Bioethics
C) Metagenomics
D) Biochemistry
C) Metagenomics
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In the disk diffusion method of antimicrobial susceptibility testing, what is the standard medium used for testing most bacterial organisms?
a. Mueller-Hinton broth b. Mueller-Hinton agar c. Brain-heart infusion agar d. Brucella broth with 5% lysed horse blood
Herceptin® is a drug that is given to treat certain breast cancers. However, it is most effective on tumors that are overexpressing the gene HER2. Which of the following strategies would be best for determining whether Herceptin® would be effective in a given patient?
A) Sequence DNA from the patient's sperm or eggs to determine whether the patient's germ cells contain gain-of-function mutations in HER2, and treat with Herceptin® only if they do. B) Determine the patient's HER2 sequence and compare it to a database of known HER2 mutations to determine whether the overexpression allele is present; if the overexpression allele is present, give Herceptin®. C) Determine the patient's HER2 sequence and compare it to a database of known HER2 mutations to confirm that the patient has a mutation in the gene; give Herceptin® if any mutation is found. D) Perform microarray analysis to determine the location of the patient's HER2 gene and give Herceptin® if the HER2 gene is not in the normal location.
What part of our skeleton most resembles an exoskeleton?
What will be an ideal response?
Behaviors that do not require environmental input for their development are called:
a. learned behaviors. b. complex behaviors. c. reciprocal altruism. d. fixed action patterns. e. instincts.