Member of a pair of chromosomes that are alike and come together in synapsis during prophase of the first meiotic division; a homologue.
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homologous chromosomes (homologues)
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Which regulatory mechanism does NOT depend on a conformational change in protein/enzyme structure to change activity?
A) attenuation B) catabolite repression C) feedback inhibition D) negative control
What important property do dinoflagellates contribute to coral reefs?
1.They supply oxygen and sugar. 2.They produce the calcium carbonate that gives the reef its structure. 3.They are parasites of other organisms that would colonize and destroy the reefs. 4.They help to regulate the temperature inside the reef.
Which of the following is NOT true?
a. Down syndrome is an example of aneuploidy. b. The majority of cases of human sex chromosome abnormalities may never be diagnosed. c. Most embryos with a normal chromosome number miscarry. d. Aneuploidy is usually fatal in humans. e. Aneuploidy typically arises through nondisjunction.
Why are skeletal muscles also called voluntary muscles?
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