The common ancestor of orangutans, gorillas, chimpanzees, and humans existed
approximately _____ million years ago.
a. 16
b. 13
c. 18
d. 7
B
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The byproduct of the metabolism of cyanobacteria that had the most effect on the further evolution of life is ____
a. oxygen gas b. carbon dioxide c. water d. nitrogen gas e. hydrogen gas
__________ are evidence of life in the distant past. Fill in the blank(s) with the appropriate word(s)
CO2 fixation: Reverse TCA
What will be an ideal response?
There are three alleles controlling the blood types ABO. I A and I B are codominant genes, so that the
combination I A I B produces the blood type AB. The third allele I O is recessive to the other two alleles. Indicate which of these parents could produce the given child:Parents Child Yes or No (a) A ? AB B (b) A ? O A (c) A ? B O (d) A ? AB O (e) A ? AB B (f) B ? B O (g) AB ? AB A What will be an ideal response?