The theory that the earth's plates move slowly to new locations over geological time is known as ____________
Fill in the blank(s) with the appropriate word(s).
Ans: plate tectonics.
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In eukaryotic cells organelles are suspended within _________.
a. golgi b. matrix c. chitin d. cytosol e. none of the above.
____________________ is the branch of genetics that is used to map genes and study chromosome structure and abnormalities in chromosome number and organization
Fill in the blank(s) with correct word
During sexual intercourse
a. the female's labia swells with blood. b. pelvic thrusting stimulate mechanoreceptors. c. inward flow of blood exceeds outward flow in the penis and it becomes erect. d. heart and breathing increase in both sexes. e. all of these occur.
Alternative exons can arise through the duplication and divergence of existing exons. What type of mutation below would be least tolerated during the evolution of a new exon?
(a) a nucleotide change of A to G (b) a deletion of three consecutive bases (c) mutation of the first nucleotide in the intron (d) a nucleotide change that alters a TT dinucleotide to AA