Direct microscope counting of stained cells is an accurate method for calculating the exact number of cells in a sample
Indicate whether the statement is true or false.
Answer: TRUE
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A cell's DNA molecules contain its genetic material. The DNA molecule can be altered
a. by chance mismatching of base pairs. b. by damage from exposure to radioactivity. c. if the host cell is intelligent and determines that an alteration would help the cell survive. d. by chance mismatching of base pairs, by damage from exposure to radioactivity, and if the host cell is intelligent and determines that an alteration would help the cell survive. e. by chance mismatching of base pairs and by damage from exposure to radioactivity.
A specific marker with two peaks indicates that the individual is ________ with respect to that particular STR marker
a. homozygous b. heterozygous
________ are strips of protected land that allow animals to travel between core reserves
Fill in the blank(s) with correct word
Which of the following is filtered from blood but NOT normally found in urine?
a. water b. red blood cells c. H+ d. amino acids e. urea