__________ is thought to be due to increased homozygosity
a. The founder effect
b. Genetic drift
c. Inbreeding depression
d. Heterozygote advantage
e. Gene flow
C
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Which of the following genera is photosynthetic using bacteriochlorophyll g?
A. Heliobacterium B. Clostridium C. Veillonella D. Caryophanon
The lymphatic system returns ____ liters of fluid to the bloodstream each day
a. 1 to 2 b. 3 to 4 c. 6 to 7 d. 10 to 13 e. more than 50
The chemical name for table salt is sodium chloride, or simply NaCl. What type of chemical is NaCl?
A) Compound B) Element C) Molecule D) Ion
When cytochrome c molecules are compared, yeasts and molds are found to differ by approximately 46 amino acids per 100 residues (amino acids in the protein); insects and vertebrates are found to differ by 29 amino acids per 100 residues. What can one conclude from these data?
a. Insects and vertebrates diverged from a common ancestor more recently than did yeasts and molds. b. Very little, unless the DNA sequences for the cytochrome c genes are compared. c. Yeasts evolved from molds, but vertebrates did not evolve from insects. d. Yeasts and molds diverged from a common ancestor more recently than did insects and vertebrates. e. The evolution of cytochrome c occurred more rapidly in yeasts and molds than in insects and vertebrates.