BIO250 - Straighterline microbiology study set Final exam with Questions & 100% Correct Answers
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Course
BIO105
Institution
BIO105
which of the following types of RNA is clover shaped and brings amino acids to the ribosome
during translation? - transfer RNA
which of the following is a characteristic of RNA, but not DNA? - the sugar that is a component
of the molecular backbone is ribose
a nucleotide is composed of - phosph...
BIO250 - Straighterline microbiology
study set Final exam with Questions
& 100% Correct Answers
which of the following types of RNA is clover shaped and brings amino acids to the ribosome
during translation? - ✔✔transfer RNA
which of the following is a characteristic of RNA, but not DNA? - ✔✔the sugar that is a component
of the molecular backbone is ribose
a nucleotide is composed of - ✔✔phosphate, nitrogen, and 5 - carbon sugar
which of the following is a random change in the DNA arising from errors in replication? -
✔✔spontaneous mutation
which of these is a genetic mutation that alters a base but does not change the amino acid? -
✔✔silent
what type of information is often transferred directly through conjugation between bacterial cells? -
✔✔drug resistance
what is the process that occurs when a recipient eukaryote cell accepts DNA fragments indirectly from
the surrounding environment? - ✔✔transfection
which type of genetic transfer requires that donor and recipient cells come into contact with each
other? - ✔✔conjugation
which process occurs when a DNA strand is heated? - ✔✔denaturing
, in genetic engineering, the enzyme that is used to rejoin DNA phosphate-sugar bonds that have
previously been cut is a(n) - ✔✔ligase
which of the following are the self -replicating bacterial DNA molecules used in genetic engineering? -
✔✔plasmids
how do opportunistic pathogens differ from primary or true pathogens? - ✔✔they require a
weakened defense in the host
what type of toxin is secreted by a bacterial cell into infected tissues? - ✔✔exotoxin
under what circumstances could a fetus be at risk of hemolytic disease? - ✔✔the RH- mother
has previously given birth to an RH+ child
which system is critical for communication between body compartments in an immune response of a
host? - ✔✔lymphatic
which of the following is the sequence of events that occurs during the body's response to an injury? -
✔✔rubor, tumor, dolor
what is the process by which microorganisms are coated with specific antibodies? - ✔✔opsonization
what microbial synthesis does penicillin target? - ✔✔cell wall
why are narrow-spectrum antimicrobials valuable? - ✔✔target specific bacteria
how do probiotics help control infections? - ✔✔they improve intestinal biota
Drinking breast milk provides which of the following kinds of protection from disease for the baby? -
✔✔natural, passive immunity
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