What is a field of research studying how traits are inherited through the interactions of alleles called?
Ans: genetics
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A person with two mutated alleles for the MC1R gene makes more reddish than brownish melanin, resulting in red hair. DNA from two Neanderthal fossils contains a mutated MC1R allele that has not yet been found in humans. These data best support the conclusion that:
1.Neanderthals had red hair.
2.Neanderthals did not have brown hair.
3.Neanderthals had a variety of hair colors.
4.Neanderthal MC1R allele was less active than unmutated MC1R.
The science of life is:
a. taxonomy. b. biology. c. evolution. d. ecology. e. systematics
Small, accessory chromosomes found in bacteria that are useful in recombinant DNA procedures are called
A) centrioles. B) bacteriophages. C) plasmids. D) viroids.
Wood frogs freeze solid during the winter and then thaw in the spring. As the freezing progresses, blood circulation stops. How would you expect cells not being served by the circulatory system to produce ATP during this time, and what by-product would
you expect to build up in the cells? A) aerobic respiration and CO2 B) fermentation and lactate C) fermentation and alcohol D) photosynthesis and O2