The defense response against a mismatched transfusion is called ____
a. precipitation
b. immunization
c. agglutination
d. ABO typing
e. transfusion allergy
ANSWER: c
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Oils from rapeseed and hemp are used in four of the following. Which one is the exception?
a. detergents b. dye c. skin care products d. fuel e. industrial lubricants
Poliovirus is an RNA virus of the picornavirus group, which uses its RNA as mRNA. At its end, the RNA genome has a viral protein (VPg) instead of a cap
This is followed by a nontranslated 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.
How does anaphase of mitosis differ from anaphase I of meiosis?
A) In anaphase of mitosis, sister chromatids separate, but in anaphase I of meiosis, homologous chromosomes separate. B) In anaphase of mitosis, homologous chromosomes separate, but in anaphase I of meiosis, sister chromatids separate. C) In anaphase of mitosis, sister chromatids join together, but in anaphase I of meiosis, homologous chromosomes join together. D) Sister chromatids do not separate in mitosis, but in anaphase I of meiosis, sister chromosomes do separate.
Depends on the formation of aldehyde groups:
a) PAS b) Wartin-Starry c) both d) neither