This figure depicts the Briggs experiment, in which he tested the hypothesis that light causes auxin to move to the shaded side of seedlings. Based on what you remember about this experiment, which shoot do you expect to bend the most?
A. Shoot A.
B. Shoot B.
C. Shoot C.
D. Shoot D.
D. Shoot D.
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Plant cells called ____ form flexible support strands such as the "strings" in celery
a. sclerenchyma b. tracheids c. collenchyma d. parenchyma e. vessel members
Mesoderm that arises from the embryonic disk near the neural tube will become
a. digestive organs. b. reproductive organs. c. the heart. d. most bones and skeletal muscles of the neck and trunk. e. the lungs.
A female with a paternal set of one orange and one long gene chromosome and a maternal set comprised of one blue and one short gene chromosome is expected to produce which of the following types of eggs after meiosis?
A) All eggs will have maternal types of gene combinations. B) All eggs will have paternal types of gene combinations. C) Half the eggs will have maternal and half will have paternal combinations. D) Each egg has a one-fourth chance of having either blue long, blue short, orange long, or orange short combinations.
The ascomycetes are named for their characteristic reproductive structure called a(n) ________.
A. ascocarp B. hypha C. thallus D. ascus