Lecture 1 Questions

Lecture 1 Questions - d Examination of the nucleotide...

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Lecture 1 : Study Questions 1. List the three traditional subdivisions of genetics and summarize what each covers. 2. Outline the notion of pangenesis and explain how it differs from the germ-plasm theory. 3. What does the concept of the inheritance of acquired characteristics propose and how is it related to the theory of pangenesis? 4. Define blending inheritance. 5. Outline the relations between genes, DNA, and chromosomes. 6. What is the relation between genetics and evolution? 7. For each of the following genetic topics, indicate whether it focuses on transmission genetics, molecular genetics, or population genetics. a. Analysis of pedigrees to determine the probability of someone inheriting a trait. b. Study of the genetic history of people on a small island to determine why a genetic form of asthma is so prevalent on the island. c. The influence of nonrandom mating on the distribution of genotypes among a group of animals.
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Unformatted text preview: d. Examination of the nucleotide sequences found at the ends of chromosomes. e. Mechanisms that ensure a high degree of accuracy during DNA replication. f. Study of how the inheritance of traits encoded by genes on sex chromosomes differs from the inheritance of traits encoded by genes on nonsex chromosomes. 8. Compare and contrast the following terms: a. Gene and allele b. Genotype and phenotype c. DNA and RNA d. DNA and chromosome 9. What three general characteristics must the genetic material possess? 10. Why was Watson and Crick’s discovery so important? 11. How does an RNA nucleotide differ from a DNA nucleotide? 12. How does a purine differ from a pyrimidine? What purines and pyrimidines are found in DNA and RNA? 13. Which bases are capable of forming hydrogen bonds with each another? 14. What are some of the important genetic implications of the DNA structure? 15. What are the major transfers of genetic information?...
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