Throughout the living world, the genetic code is generally universal; however, there are slight variations
Indicate whether the statement is true or false.
Answer: TRUE
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The ________ cells in a multicelled organism will contain pairs of chromosomes which are not used for sexual reproduction. a. reproductive b. None of these choices
c. germ d. sex e. somatic
____ is a random change in allele frequency
over time that is brought about by chance.
a. Genetic drift b. Gene flow c. Natural selection d. Disruptive selection e. Balanced polymorphism
Anaerobic oxidation of (methane/rubisco/plastics) produces carbon dioxide.
Fill in the blank(s) with the appropriate word(s).
A basal lamina ______________________
(a) is a thin layer of connective-tissue cells and matrix underlying an epithelium. (b) is a thin layer of extracellular matrix underlying an epithelium. (c) is attached to the apical surface of an epithelium. (d) separates epithelial cells from each other.