In pedigrees, a male individual is symbolized as a ____________________. Fill in the blank(s) with the appropriate word(s)
ANS: square
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The hemocyanin of arthropods and molluscs differs from the hemoglobin of mammals in that _____
A) the oxygen dissociation curve for hemocyanin is linear B) hemocyanin carries appreciably more carbon dioxide C) hemocyanin has protein coupled to copper rather than to iron D) the protein of hemocyanin is not bound to metal E) hemocyanin includes cyanic acid
What part of the ATP synthase is responsible for catalyzing ATP formation?
a. the basal unit b. the headpiece c. the stalk d. the lollipop e. the electrons
Bats, by emitting high-pitched sounds, can detect distant objects via:a
olfaction. b. echolocation. c. lateral line organs. d. sensory adaptation. e. ommatidia.
Why is it important to compare DNA sequences in the construction of an evolutionary tree?
a. Similarities in physical appearance cannot be used to construct and evolutionary tree. b. Convergent evolution can cause distantly related organisms to appear closely related. DNA sequence analysis can show that they are actually distantly related. c. DNA sequence comparison is not required; homologous features alone are sufficient in evolutionary tree construction. d. RNA sequences are actually more important in constructing an evolutionary tree since they are the precursors to DNA. e. None of the above