Blood found at crime scenes is commonly used as a source of DNA. Which component of blood provides the DNA?
1.red blood cells
2.white blood cells
3.plasma
4.all of the choices
2
Biology & Microbiology
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Contact inhibition is an important mechanism for maintaining cell growth in developed organs and
tissues. As long as the cells remain in contact with each other they remain in ____ and are prevented from dividing.
a. prophase b. G1 c. G2 d. G0 e. S
Biology & Microbiology
Which cellular structure makes sugars and proteins in plants?
a. Vacuole b. Centriole c. Nucleus d. Golgi body e. Chloroplast
Biology & Microbiology
The spindle apparatus appears during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase
Biology & Microbiology
Franklin worked closely with
a. Wilkins. b. Watson. c. Crick. d. Chargaff. e. none of these.
Biology & Microbiology