Errors in meiosis, called ________, can affect the number of sex chromosomes or autosomes in a gamete
Fill in the blank(s) with correct word
nondisjunction
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True or false: Because water is so abundant on Earth, oxygen and hydrogen make up a majority of the known matter of the universe
A. true B. false
The packaging of eukaryotic DNA into chromatin renders most promoters inaccessible to RNA polymerases and activator proteins. Under these conditions, most eukaryotic genes are:
A. constitutively repressed. B. constitutively activated C. globally expressed. D. insulated by nucleosome binding.
The horizontal platform that supports the microscope slide is the
a) stage b) mechanical stage c) mechanical stage control d) none of the above
More often, however, the fossil record shows that species appear quite suddenly and remain unchanged ______ over time.
What will be an ideal response?