Human cells have
A. 23 pairs of chromosomes.
B. 23 chromosomes.
C. 46 pairs of chromosomes.
D. 2 pairs of sex chromosomes.
E. one pair of autosomes.
A. 23 pairs of chromosomes.
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Ergotism _____
a. results from inhalation of fungal spores b. produces hallucinations and convulsions c. affects only those with weak immune systems d. all of the above
Molecular hydrogen is an example of which type of molecule?
a. polar covalent b. nonpolar covalent c. ionic d. coordinate covalent e. network
The centrioles are highly conserved chromosome regions that interact with spindle fibers during cell division
Indicate whether the statement is true or false
When a mutation occurs during DNA replication, ____ replaces the incorrect nucleotide with the correct one after the
mismatched nucleotide has been removed. a. mismatch repair enzymes b. DNA ligase c. DNA polymerase d. telomerase e. helicase