the following pedigree, the indicated trait most likely is caused by which type of allele?
A) autosomal recessive
B) autosomal dominant
C) X-linked recessive
D) X-linked dominant
E) Y-linked
D) X-linked dominant
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The substances that donate electrons to the electron transport chains of chemolithotrophs are ________.
A. lipids B. carbohydrates C. inorganic compounds D. methane gas and alcohols
_____________ is the primary force responsible for changes in allelic frequency of deleterious mutations. _______________ is the primary force responsible for changes in allelic frequency of neutral mutations
A. Genetic drift; Natural selection B. Natural selection; Genetic drift
The most dangerous arrhythmia is ____
a. bradycardia b. heart failure c. tachycardia d. atrial fibrillation e. ventricular fibrillation
The most objective way to construct a phylogeny is to focus on characters
A. inherited from a common ancestor. B. that confer adaptedness to a particular habitat. C. that are large in size. D. acquired during an organism's lifetime.