The first haploid cell in the life cycle of a plant that begins the gametophyte generation is a
a. zygote.
b. gamete.
c. male gametophyte.
d. female gametophyte.
e. spore.
E; A plant spore is the result of meiosis. Therefore, it is haploid and the start of the gametophyte generation.
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During a camping and hiking expedition in the Ice Age National Scenic Trail at Hartman Creek State Park (Waupaca, WI), an individual notices a small tick on his arm
After removing the partially embedded deer tick, what symptoms should this individual look for to indicate infection of Borrelia burgdorferi? Also, what should be done on future hiking trips to decrease the likelihood of B. burgdorferi infection? What will be an ideal response?
Based on the phylogeny shown, which species is not a tree but has seeds?
A. Psaronius
B. ginkgo
C. fern
D. rose
E. oak
F. pine
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?
Gather Content
· What do you already know about cladistics?
Consider Possibilities · What other information is related to the question? Which information is most useful?
Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which scientist(s) discovered the basis for the
base-pair rule, which stated that the amounts of adenine in all DNA are the same, as are the amounts of cytosine and guanine?
a. Watson and Crick b. Beadles c. Chargaff d. Franklin e. Pauling
Sister chromatid exchanges increase in frequency in the presence of X-rays, certain viruses, ultraviolet light, and certain chemical mutagens. In what autosomal recessive disorder is there known to be an increase in sister chromatid exchanges?
A) Harlequin syndrome B) cystic fibrosis C) achondroplasia D) Bloom syndrome E) Huntington's disease