The sugar found in DNA is a(n) ____________________. Fill in the blank(s) with the appropriate word(s)
ANSWER: deoxyribose
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Active genes in eukaryotic cells are associated with
A. heterochromatin. B. methylated RNA and histones. C. DNA with many methyl groups. D. euchromatin.
Which of the following choices regarding fixed action patterns is incorrect?
a) A fixed action pattern can be potentially maladaptive. b) Fixed action patterns are innate behaviors. c) Once it is triggered, a counter-stimulus could halt a fixed action pattern. d) Fixed action patterns require no learning. e) A fixed action pattern of one organism can be exploited for the benefit of another.
A pedigree is always able to provide enough information to rule out all but one possible pattern of inheritance
a. True b. False
Which of the following is a characteristic of whisk ferns?
a. yellow knobs on branch tips b. deep, branching roots c. large, fringed fronds d. reddish-brown sporophytes