In situ hybridization allows one to "visualize" the location of labeled RNA or DNA in a tissue or cell
Indicate whether the statement is true or false
TRUE
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Garstang's theory states that the vertebrates originated from:
A. larval tunicates that developed the ability to reproduce sexually while retaining the larval body form B. a gradual modification of the adult body form of Urochordates C. larval Cephalochordates that developed the ability to reproduce sexually while retaining the larval body form D. echinoderms with a post anal tail and notochord E. segmented echinoderms
Which of the following statements is TRUE?
a. Once a person reaches maturity, cell division stops except to repair wounds. b. Cell division in an adult signifies cancer. c. Some specific cells throughout the body retain the ability to divide and replace themselves. d. Growth continues throughout the life of an adult human. e. All cells retain the ability to divide even after the organism reaches maturity.
A solution that has a higher concentration of dissolved materials than the solution it is compared to is
A. hypertonic. B. hypotonic. C. hydrophobic. D. hydrophilic.
Who is credited with first observing microorganisms?
A) Robert Hooke B) Anton van Leeuwenhoek C) Robert Koch D) Louis Pasteur E) Carolus Linnaeus