Serial dilution can be used in combination with pour plates as a method for isolating pure cultures
Indicate whether the statement is true or false
TRUE
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Most members of the ____ Cnidarian lineage, including Obelia species, have both polyp and medusa stages in their
life cycles, with the polyp stage typically forming a colony.
a. Hydrozoa b. Scyphozoa c. Trematoda d. Cubozoa e. Anthozoa
Organisms that thrive in extremely cold climates often produce proteins that act as "antifreeze". Given that all proteins bind to other molecules, how might such antifreeze proteins work?
A.) they bind to channels in the cell membrane, preventing water from seeping into or leaking out of cells B.) they bind to metal ions and each other, which attracts water molecules to form a thick gem that expands C.) they bind to proteins in the cell nucleus, promoting the expression of antifreeze genes D.) they bind by way of their beta sheets to tiny ice crystals, preventing their growth
In order for a girl to inherit hemophilia A, her parents would have which genotypes?
A. XhXh and XHY B. XHXh and XHY C. XHXH and XHY D. XHXh and XhY
Place the following in order of their replacement times, from shortest to longest
A. epidermal cell B. nerve cell C. bone matrix D. red blood cell E. cell lining the gut