Is this statement true or false? Body cells may inherit three or more of each type of chromosome characteristic of the species, a condition called polyploidy
Indicate whether the statement is true or false
True
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What is the correct chromosomal condition at prometaphase of mitosis?
A) A B) B C) C D) D E) E
Eukaryotic organisms speed up the process of DNA replication by
A. shortening the initiation phase. B. producing several sliding clamp complexes which provide more binding sites for DNA pol III. C. using DNA gyrase to unravel the double helix rather than DNA helicase. D. using multiple origins of replication on each chromosome.
The H zone never includes ______.
A. myosin B. actin C. titin D. the M band
Which statement best describes the basis of sensory adaptation?
A) A continuously stimulated sensory receptor triggers fewer action potentials, so stimuli sent to the brain decrease and awareness of the stimuli is diminished. B) The nerve fiber synapsed with a sensory receptor gradually returns to its baseline level of firing despite continued neurotransmitter stimulation. C) The spinal cord interneurons that receive a prolonged stimulus gradually come to ignore it. D) The thalamic centers that receive a prolonged stimulus gradually come to ignore it.