exam1 - NATS 104 LIFE ON EARTH SPRING, 2003 FIRST 100-pt...

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NATS 104 LIFE ON EARTH Section: _______ (1pt) SPRING, 2003 FIRST 100-pt EXAM. Name: ________________ (each question 3 points) Write your name and section on this page. On the bubble sheet write your name Last (space) First (space) M.I. and fill in the appropriate bubbles. Under “Grade or EDUC” put your section. Use “0” for section 31. 1. The 64 possible combinations of nucleic acids in a codon code for the ____ common amino acids found in living organisms. a. 16 b. 20 c. 40 d. 64 e. 120 2. AIDS is caused by a a. bacteriophage b. bacterium c. fungus d. protozoan a. virus 3. All ______ are procaryotic single-celled organisms a. algae b. bacteria c. fungi d. protozoans e. viruses 4. Any heritable change in DNA is a a. anaphase b. fertilization c. prokaryote d. metaphase a. mutation 5. Crossovers and inversions occur during a. interphase b. fertilization c. mitosis d. meiosis e. photosynthesis 6. The correct taxonomic name for living humans is a. Homo sapiens b. homo Sapien c. Homo sapien d. homo sapiens e. Homosapien
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7. During which stage of meiosis do chromatids separate a. anaphase 1 b. anaphase 2 c. metaphase 1 d. metaphase 2 e. telophase 1 8. During which stage of meiosis does the number of chromosomes become haploid? a. anaphase 1
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This note was uploaded on 04/02/2008 for the course NATS 104 taught by Professor Lewis during the Spring '08 term at University of Arizona- Tucson.

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exam1 - NATS 104 LIFE ON EARTH SPRING, 2003 FIRST 100-pt...

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