4) Suppose that in the Lenski experiment, the number of doublings per day of gen

Question

4) Suppose that in the Lenski experiment, the number of doublings per day of genotype 1 and 2 (e.g., ancestral genotype and new mutant) are D1 and D2. A) Expressed in terms of D1 and D2, what is the relative fitness, w, of genotype 2 relative to genotype 1? B) As shown in slide 16 from the Feb. 7 lecture, after 10,000 generations, the average evolved culture had a number of doublings per day about 1.4 times that of the ancestral genotype. The ancestral genotype had about six doublings per day. What was the relative fitness of the average evolved culture relative to the ancestral genotype? 5) Put the following events in chronological order, from earliest to latest: a) The "Modern Synthesis". b) Publication of the first edition of "On the Origin of Species". c) Bishop Ussher's estimate of the age of the earth. d) Publication of Lyell's "Principles of Geology" e) Rediscovery and widespread acceptance of Mendel's laws. Most recent Earliest

Explanation / Answer

5) In the ascending order:

(c) Bishop Ussher's estimate of the age of the Earth: 4004 BC

(d) Publication of Lyell's 'Principle of Geology': 1830-1833

(b) Publication of the first edition of the 'On the origin of species': 1859

(e) Rediscovery and widespread acceptance of Mendel's law: 1900

(a) The 'Modern synthesis': 1942

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