Which of the following is true of mitochondrial DNA?
a. It is present in the nucleus of every cell.
b. It is only transferred from mother to offspring.
c. It mutates at a much slower rate than nuclear DNA.
d. It contains the entire segment of the total genetic recipe.
e. It appears to be under greater selective pressure than nuclear DNA.
b
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Which of the following is an element of the scientific method?
a. experimentation b. observation c. hypothesis d. all of these
Cross-cultural research on parental acceptance and rejection found that children who are not treated affectionately by their parents tend to be __________.
A) sullen and withdrawn B) hostile and aggressive C) anxious and hyperactive D) dull and lazy
Evidence for the use of fire by archaic Homo sapiens is __________
a. only found in western Europe b. well documented in the archaeological record c. rare d. found in Asia but not Europe
To be successful as a female coal miner, one must choose an identity—tomboy, lady, or girly girl—and never stray from that identity
Indicate whether the statement is true or false.