Investigator a conducts research on emphysema using biospecimens from human subjects. the consent form indicates that the research will focus exclusively on emphysema. investigator b wishes to use the biospecimens for research on lung cancer. can investigator b use the specimens for cancer research without re-consent if the specimens are de-identified? no, the original research subjects must be re-consented for the cancer research. yes, because research with biospecimens is minimal risk. yes, if the biospecimens are de-identified then the research is no longer considered human subjects research. no, because it would be unethical to conduct research that is not consistent with the consent form the subjects originally signed.

The heart and lung are located in which cavity ? thoracic

Poliovirus is an rna virus of the picornavirus group, which uses its rna as mrna. at its 5' end, the rna genome has a viral protein (vpg) instead of a cap. this is followed by anontranslated leader sequence, and then a single long protein-coding region (~7000 nucleotides), followed by a poly-a tail. observations were made that used radioactive amino acid analogues. short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides. what conclusion is most consistent with the results of the radioactive labeling experiment? a) host cell ribosomes only translate the viral code into short polypeptides. b) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones. c) the rna is translated into short polypeptides, which are subsequently assembled into large ones. d) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

What hormones (at least three) are responsible for human growth and development and what do they do? describe what menstruation is and how it relates to reproduction. what are common emotional and physical challenges that arise during transition from child to adult? include and describe at least three challenges. what steps can you take to ease your own transition and be sensitive to others when they experience theirs? analyze the role of hormones in growth and development. how does this relate to your own personal health?