How were early stone tools made?
A) One stone was struck with another to create a sharp flake.
B) The stones heated and then struck with another stone.
C) The stones were modified using a hammer stone.
D) Two stones were clapped together until one broke.
A) One stone was struck with another to create a sharp flake.
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The Internet has hindered the process of globalization.
Answer the following statement true (T) or false (F)
The process of translation is initiated when two molecules come together with the mRNA to form a:
A. codon. B. primer. C. base. D. ribosome.
The theory proposed by nineteenth century anthropologists (Tylor, Frazer, Morgan) that all cultures naturally evovle through the same sequence of stages from simple to complex. They plotted the world's culture on a continuum from savage-barbarian-civilized.
What will be an ideal response?
Two people (both heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T). The inability to taste PTC is caused by a recessive allele (t). What proportion of their children would be expected to have the ability to taste PTC?
a. 3/4 b. 1/2 c. All d. 1/4 e. 2/3