In transcription, RNA polymerase binds to a __________ in the DNA near a gene, and then assembles
a strand of RNA. Fill in the blank(s) with the appropriate word(s).
ANS: promoter PTS: 1 DIF: Moderate
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When proteins and nucleic acids are broken down, the toxic end products are collectively called ____ waste
Fill in the blank with the appropriate word.
Which of the following does NOT occur in the
first three months of development?
a. formation of a heart b. disappearance of the tail c. formation of internal organs d. detection of movement of the fetus e. segmentation and development of somites
The significance of Fred Griffith’s experiment in
which he used two strains of Streptococcus pneumoniae is that a. pathogenic bacteria function differently in mice than in other organisms. b. it demonstrated that harmless bacteria can become transformed into disease-causing bacteria by some association with pathogenic bacteria. c. it established that pure DNA extracted from disease-causing bacteria transformed harmless strains into killer strains. d. dead cells lose their genetic information. e. the genetic material is DNA, not protein.
Which of the following is an example of a tissue?
A) heart muscle B) heart C) red blood cell D) circulatory system