Morgan's analysis of a white-eyed male Drosophila mutation helped explain __________
A) autosomal dominance
B) random mutation
C) crossing over
D) independent assortment
E) X-linked inheritance
E
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The plant hormone involved in aging and ripening of fruit is _____
A) auxin B) ethylene C) florigen D) abscisic acid E) gibberellin
To be useful to scientists, a hypothesis must be ________; in other words, the hypothesis must be able to be confirmed or discredited.
Fill in the blank(s) with the appropriate word(s).
Chemical evolution may have become relatively sophisticated before cells first arose in ________
a. hydrothermal vents and on clay particles in shallow mud flats b. nebulae c. algal mats and stromatolites d. hydrothermal vents and stromatolites
The anterior pituitary gland is controlled by hormones produced by the ____________.
Fill in the blank(s) with the appropriate word(s)