During metaphase I of meiosis,
A. individual chromosomes line up at the poles.
B. homologous pairs are aligned at the equator.
C. pairs of chromosomes separate from other pairs by spindle rays.
D. only one member of each pair is in each cell.
B. homologous pairs are aligned at the equator.
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In terms of global gene regulation, which of the following molecules is most similar to c-di-GMP and cAMP?
A. EnvZ B. ppGpp C. rRNA D. ATP
Which of the following is NOT true of the plasma membrane?
A. It is composed of an extracellular and intracellular layer of phospholipids. B. The extracellular and intracellular layers or leaflets are highly symmetrical. C. The membrane contains peripheral proteins. D. Integral proteins span through the membrane. E. The membrane contains glycolipids and glycoproteins.
Genetic information carried by a(n) _____________________ directs the synthesis of a(n) _____________________
chain during translation. Fill in the blank(s) with the appropriate word(s).
Chorionic villus sampling (CVS) is sometimes preferred to amniocentesis because results can be provided earlier in the pregnancy
Indicate whether the statement is true or false