"Blood is thicker than water" is a true statement since blood contains many components that are more dense than water.
Indicate whether the statement is true or false.
Ans: True.
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The leading candidate for the molecular replicator during the origin of cells is ____
a. pyranose b. xeno-nucleic acids c. protein d. RNA e. DNA
Which chemical carries the DNA's instructions for synthesizing a particular protein from the nucleus to the cytoplasm?
A) RNA transcriptase B) messenger RNA C) transfer RNA D) ribosomal RNA
The disinfectant chemical shown in Figure 9.1 is known as (isopropanol/quats/triclosan).
Fill in the blank(s) with the appropriate word(s).
X chromosome inactivation results in the
a. total inactivation of both X chromosomes. b. inactivation of only the paternal X chromosome. c. inactivation of only the maternal X chromosome. d. inactivation of either the paternal X chromosome or the maternal X chromosome. e. nonrandom inactivation of X chromosomes in the initial cells of tissues