For two linked genes, the maximum percentage of recombinant offspring seen in a test cross is ________ assuming crossing over occurs 100% of the time between the two genes.
a) 25%
b) 50%
c) 75%
d) 100%
Ans: b) 50%
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Molecular oxygen (O2), which is required for the production of ATP by mitochondria, must pass through at least three membranes to get to the enzymes where it is used
O2 is also produced in chloroplasts and must pass through at least four membranes to be released from the plant. How does O2 move across biological membranes? A. There are numerous protein transporters that allow O2 to travel across membranes. B. O2 is nonpolar, and very small, so it can diffuse across the membrane. C. O2 undergoes a chemical reaction that binds it to other substances that are transported across the membranes. D. O2 is hydrophilic and travels with water across the membranes.
Bioenergetics can be simply defined as
A) a subdivision of biology. B) applied thermodynamics. C) the units in which energy is expressed. D) the application of biological principles to physics. E) holding constant the variables in the universe.
Sympathetic and parasympathetic nervous system responses usually oppose each other
Indicate whether the statement is true or false
Examples of PAMPs include ______. Select All That Apply
Fill in the blank(s) with the appropriate word(s).