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Test 2 without answers A

Test 2 without answers A - 1 Biology 101 Test II DeSaix...

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1 Biology 101 –– Test II- DeSaix February 25, 2010 Name_____________________________ Print your name, last name first, and your PID number legibly on your answer sheet. Each answer is worth 2 points. Always choose one best answer and use only number 2 pencils to fill in your answers. Be sure to sign the pledge on your answer sheet. The last question will be used only if another question has to be deleted. Turn in your answer sheet in alphabetical order at the front of the room. Write down your answers on this copy to check against the key so that you will know what you have missed. The key will be posted on the blackboard website. ___1. Which of the following terms refers to the situation where a single phenotypic characteristic is determined by the additive effects of genes at two or more loci? A. incomplete dominance, B. codominance, C. pleiotropy, D. polygenic inheritance, E. blending inheritance. ___2. Genes located close together on the same chromosomes are referred to as ___ and generally ___. A. associated...sort independently during meiosis, B. linked...sort independently during meiosis, C. homologous...are inherited together, D. linked...do not sort independently during meiosis, E. codependent...do not sort independently during meiosis. ___3. The work of Griffith indicated that: presence of killed harmful bacteria. transformation. ___4. Hershey and Chase worked with: viruses; DNA. ___5. Which of the following could not be used in the production of different enzymes: messenger RNA; acid; ___6. What evidence shows that genes specify amino acid sequences in proteins? A. DNA is transcribed into a mRNA molecule. B. tRNA molecules have an amino acid attached to one end. C. Ribosomes contain RNA. D. A change in the base sequence of a gene changes the amino acid sequence of a protein. E. None of the above. ___7. Protein Synthesis occurs: digestive system,
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