Based on the figure below, what statement could you make about the development of human versus chimpanzee skulls.
A. The human and chimp skulls develop similarly until adulthood, when human jaw development slows down relative to the chimpanzee.
B. The human and chimp skulls develop similarly until the infant stage, when human jaw development slows down relative to the chimpanzee.
C. The human and chimp skulls develop similarly until the infant stage, when human cranium development slows down relative to the chimpanzee.
D. The human and chimp skulls develop similarly during the fetal stage, after which point chimpanzee cranium growth outpaces humans.
B. The human and chimp skulls develop similarly until the infant stage, when human jaw development slows down relative to the chimpanzee.
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Melatonin is secreted by
a. pancreatic islet cells. b. the thyroid gland. c. the pituitary gland. d. the pineal gland. e. the kidneys.
When Mendel crossed tall (Tt) plants with tall (Tt) plants the offspring
a) did not grow and reproduce. b) were always short. c) were always tall. d) were always medium height. e) were mostly tall individuals and a few short individuals.
In gene expression, ________
A) DNA directs the synthesis of RNA that directs the synthesis of a polypeptide B) DNA directs the synthesis of a polypeptide that directs the synthesis of RNA C) RNA determines the sequence of DNA, which directs the synthesis of polypeptides D) polypeptides direct the synthesis for both RNA and DNA
Eukaryotic and prokaryotic organisms differ in how they process genetic information. Which statements best explain one of these differences?
A. In prokaryotes, translation occurs before genes are transcribed into mRNA. In eukaryotes, genes are transcribed into mRNA that is then translated into polypeptides. B. In prokaryotes, introns are removed before genes are transcribed into mRNA. In eukaryotes, introns are removed after genes are transcribed into mRNA. C. In prokaryotes, translation of the mRNA begins before transcription is complete. In eukaryotes, transcription and modification of the mRNA is completed before translation begins. D. In prokaryotes, genes are transcribed directly into polypeptides. In eukaryotes, genes are transcribed into RNA that is used to assemble polypeptides.