26. A) an atypical number of chromosomes. B) a rather long face, prominent ears, and extreme shyness. C) exceptional ability in a particular field but below-average ability in other areas. D) close-set eyes and an absence of the typical folds between the nose and upper lip.

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

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what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements