As a botanist working for a field museum, you spend many hours in the field looking for new species of plant. On a recent trip, you came across a group of plants that may represent a new species. Each plant has seeds but they are not encased in fruit. Additionally, you notice that male and female cone structures are found on different plants. The cones are very large, and you determine average weight to be 30 kg. In which of the following groups would this plant most likely be classified?
A. cycad
B. fern
C. gnetophyte
D. angiosperm
E. conifer
Answer: A
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Refer to the paragraph on Redi's experiments. What hypothesis was being tested in the initial experiment with open versus sealed jars?
A) Spontaneous generation is more likely during the long days of summer. B) The type of meat used affects the likelihood of spontaneous generation. C) Maggots do not arise spontaneously, but from eggs laid by adult flies. D) Spontaneous generation can occur only if meat is exposed to air.
Show the complementary strand of DNA that forms on this template DNA fragment during replication:5' GGTTTCTTCAAGAGA3'
What will be an ideal response?
During ________ the information in mRNA is decoded into an amino acid sequence
a. gene expression b. replication c. mitosis d. transcription e. translation
Which virus attacks white blood cells?
A) Rabies B) Smallpox C) Influenza D) Herpes E) HIV