Biology 1710 Exam III F'04

Biology 1710 Exam III F'04 - Principles of Biology I Exam...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Principles of Biology I Name:_____________________________ Exam III, Fall ‘04 Read all of the possible answers for each question before choosing the BEST ANSWER. 1. Mendel crossed a true breeding yellow seeded pea with a true breeding green seeded pea. Yellow is dominant over green. He then self fertilized the f1 plants to produce f2 generation plants. The seeds of these plants would be: a. all yellow. b. 75% green, 25% yellow. c. 75% yellow, 25% green. d. 50% yellow, 50% green. e. suitable only for the Jolly Green Giant. 2. Human A,B,O blood groups are a good example of: a. incomplete dominance. b. epistasis. c. codominance. d. pleiotrophy. e. a reason to change majors. 3. An alternative theory for explaining the mechanism of evolution, which involved the inheritance of characteristics acquired by the parents during their lives, was proposed by: a. Mendel. b. Darwin. c. Wallace. d. Lamarck. e. Sturdevent. 4. The increased survival rate of persons living in central Africa with wild type and sickle cell alleles is an excellent example of: a. Hardy-Weinberg equilibrium. b. frequency dependent selection. c. heterozygote advantage. d. directional selection. e. stabilizing selection. 5. The inactivated X chromosome in a normal human female cell is called a/an: a. autosome. b. sex determining factor. c. centiMorgan. d. Barr body. e. RFLP.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6. Which of the following is/are NOT true of the genetic code? a. It is universal, or nearly so. b. It is based on trinucleotide units. c. It is degenerate. d. The basic unit is the codon. e. All of the above answers are correct. 7. A human female lacking a Barr body would likely: a. have Klinefelter syndrome. b. have Turner syndrome. c. be normal since the second X chromosome isn’t used anyway. . d. have Down syndrome. e. None of the above are true since monosomic chromosomes are fatal before birth. 8. The process of making RNA using a DNA template is called: a. phosphodiester synthesis. b. translation. c. transcription. d. replication. e. transition. 9. The experiment which utilized 32 P, 35 S, E. coli and T2 bacteriophage (to demonstrate that DNA functioned as the genetic material in T2) was carried out by: a. Watson and Crick. b. Hershey and Chase. c. Franklin and Wilkins. d. Avery, McCarty and MacLeod. e. Messelson and Stahl. 10. Two consecutive nucleotides of a DNA chain (or strand) are connected by _____. a. hydrogen bonds b. peptide bonds c. phosphodiester bonds d. aminoacyl linkages e. ionic bonds through the phosphates 11. The enzyme that relieves the “over-winding” caused by the DNA replication fork is: a. DNA polymerase I. b. gyrase. c. DNA polymerase III. d. helicase. e. DNA ligase.
Background image of page 2
12. Erwin Chargaff determined that: a. in DNA the amount of adenine equals the amount of thymine. b.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/25/2008 for the course BIOL 1710 taught by Professor Jag during the Fall '08 term at North Texas.

Page1 / 10

Biology 1710 Exam III F'04 - Principles of Biology I Exam...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online