Oxygen-rich blood moves through the left side of the heart while oxygen-poor blood moves through the right side.
a. true
b. false
Ans: a. true
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In the early years of the twentieth century, ____ proposed that some genetic disorders and abnormalities of metabolism are related
a. Sir Archibald Garrod b. Francis Crick c. Linus Pauling d. Linda Bartoshuk e. Gregor Mendel
Australia, Antarctica, and South America represent fragments of
a. Australasia. b. Laurasia. c. Gondwanaland. d. Eurasia. e. Amerasia.
Which of these is an example of sister chromatids?
a. Replicated chromosomes held together at the centromere b. Maternal chromosome 1 and paternal chromosome 3 c. X and Y chromosomes d. Maternal chromosome 1 and paternal chromosome 1
The different forms of a gene-for example, those responsible for eye color-are called
A) sister chromatids. B) receptors. C) alleles. D) cyclins. E) telomeres.