Barbara mcclintock Study guides, Class notes & Summaries

BS 161 FINAL EXAM WITH COMPLETE SOLUTIONS ( 3 VERSIONS) VERSION 1 Barbara McClintock, who achieved fame for discovering that genes could move within genomes, had her meticulous work ignored for nearly four decades, but eventually won the Nobel Prize. Why was her work so distrusted? A)She worked only with maize, which was considered "merely" a plant. B)Geneticists did not want to lose their cherished notions of DNA stability. C)She allowed no one else to duplicate her work. ...

BS 161 FINAL EXAM WITH COMPLETE SOLUTIONS ( 3 VERSIONS) VERSION 1 Barbara McClintock, who achieved fame for discovering that genes could move within genomes, had her meticulous work ignored for nearly four decades, but eventually won the Nobel Prize. Why was her work so distrusted? A)She worked only with maize, which was considered "merely" a plant. B)Geneticists did not want to lose their cherished notions of DNA stability. C)She allowed no one else to duplicate her work. ...

OpenStax Microbiology Test Bank Chapter 10: Biochemistry of the Genome * = Correct answer Multiple Choice 1. Gregor Mendel conducted his revolutionary work on patterns of inheritance using which organism? A. fruit flies B. pea plants* C. roundworms D. snapdragons 2. Which best describes true-breeding organisms? A. They are heterozygous at multiple loci. B. They have been produced through hybridization. C. They produce offspring identical to themselves when self-fertilized.* D. The...

1) A protein is 300 amino acids long. Which of the following could be the number of nucleotides in the section of DNA that codes for this protein? (Remember: DNA is double-stranded.) E) 1800 2) A short segment of an mRNA molecule is shown below. The polypeptide it codes for is also shown: 5′-AUGGUGCUGAAG : methionine-valine-leucine-lysine Assume that a mutation in the DNA occurs so that the fourth base (counting from the 5′ end) of the messenger RNA now reads A rather than G. What seq...

BIOL 3030 Practice Exam 40 Questions with Verified Answers Which enzyme untwists the parent strands of DNA during replication? - CORRECT ANSWER DNA helicase Tetrad analysis is a technique for a. determining base sequences in DNA b. mapping genes in organisms retaining the four meiotic products in one structure c. measuring the number of chromatids at meiosis d. separating neurospora mycelia - CORRECT ANSWER b. mapping genes in organisms retaining the four meiotic products in one struct...

OpenStax Microbiology Test Bank Chapter 10: Biochemistry of the Genome * = Correct answer Multiple Choice 1. Gregor Mendel conducted his revolutionary work on patterns of inheritance using which organism? A. fruit flies B. pea plants* C. roundworms D. snapdragons 2. Which best describes true-breeding organisms? A. They are heterozygous at multiple loci. B. They have been produced through hybridization. C. They produce offspring identical to themselves when self-fertilized.* D. The...

What are the 5 steps in the Scientific Method? - Answer 1. Identify a problem or pose a question based on an observation. 2. Formulate a hypotheses. 3. Conduct experiments or tests the hypotheses. 4. Observe and record the results. 5. Draw a conclusion (was the hypothesis correct?). * peer review is also important. Metric Unit deca (da): - Answer x 10^1 Metric Unit hecto (h): - Answer x 10^2 Metric Unit kilo (k): - Answer x 10^3 Metric Unit mega (M): - Answer x 10^6 Metric ...

volumetric flask - ANSWER used to accurately prepare solutions of various concentrations often used in titrations erlenmeyer flask - ANSWER can be used for mixing, transporting, and reacting, but are not appropriate for accurate measurements repippette - ANSWER hand operated pump that dispenses solutions beakers - ANSWER can be used to measure mass or dissolve a solvent into a soulte graduated cylinder - ANSWER used for precise measurements and are more accurate than erlenmeyer fl...

What are the 5 steps in the Scientific Method? - ANSWER 1. Identify a problem or pose a question based on an observation. 2. Formulate a hypotheses. 3. Conduct experiments or tests the hypotheses. 4. Observe and record the results. 5. Draw a conclusion (was the hypothesis correct?). * peer review is also important. Metric Unit deca (da): - ANSWER x 10^1 Metric Unit hecto (h): - ANSWER x 10^2 Metric Unit kilo (k): - ANSWER x 10^3 Metric Unit mega (M): - ANSWER x 10^6 Metric ...

OpenStax Microbiology Test Bank- Chapter 10: Biochemistry of the Genome BIOLOGY 206 * = Correct answer Multiple Choice 1. Gregor Mendel conducted his revolutionary work on patterns of inheritance using which organism? A. fruit flies B. pea plants* C. roundworms D. snapdragons Difficulty: Easy ASM Standard: N/A 2. Which best describes true-breeding organisms? A. They are heterozygous at multiple loci. B. They have been produced through hybridization. C. They produce offspring identical to themsel...