Which of the following types of organisms is always haploid?
A) bacteria
B) fungus
C) Drosophila
D) ferns
E) humans
Answer: A
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Identify the role of carbon dioxide in photosynthesis.
A. It is split to release electrons. B. It is split to become incorporated into sugars. C. It is a by-product of the Calvin cyle D. It is the final electron acceptor.
Which two observations led Darwin to conclude that there is competition for survival?
A. Fossils and mutations B. Overproduction of organisms and limited food resources C. Gene and allele differences in organisms D. Natural selection and descent with modification
What is the current status of DNA vaccines?
A. None has been successfully created. B. Several have been created but have been found to be ineffective. C. Several have shown promise in animal studies and are now in clinical trials. D. Several have passed clinical trials and are awaiting government approval. E. They are in limited use against a small number of diseases.
FISH distinguishes chromosomes by using more than one fluorescent-tagged RNA strand, which will bind to
complementary DNA sequences on a specific chromosome. _________________ Indicate whether the statement is true or false.