What did Lederberg conclude from his famous replicate plate experimen
What did Lederberg conclude from his famous replicate plate experimen
Homework Answers
Lederberg's experiment concluded that mutations specific to environmental changes are present in a few of the organisms even before the change has occurred, as in his experiment, streptomycin resistant bacteria were present in colonies even before they were ever exposed to the antibiotic. Therefore it showed that mutation is a non-adaptive process that happens randomly and the effects of the mutation can be either harmful or beneficial, but in any case is independent of environmental stress.
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What did Lederberg conclude from his famous replicate plate
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chocolate bar inside on a paper plate • A student removes the spinning plate from his...
chocolate bar inside on a paper plate • A student removes the spinning plate from his microwave oven. ng plate from his microwave oven. He places a side on a paper plate and zaps it for 10 seconds. Removing the he sees two melted spots approximately 6cm apart. The microwave says on that it operates at 24.5 GHz. Considering that the speed of light in air ose to the speed of light in a vacuum, he calculates the wavelength of...
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from this reading, what did you find out? what facts
did you learn from this? did you already know this? was it
interesting to you?
When Mendel proposed that each trait is determined by a pair of genes, it presented a potential problem. If parents pass on both copies of a gene pair, then offspring would end up with four genes for each trait. Mendel deduced that sex cells — sperm and eggs — contain only one parental gene of...
chocolate bar inside on a paper plate • A student removes the spinning plate from his microwave oven. ng plate from his microwave oven. He places a side on a paper plate and zaps it for 10 seconds. Removing the he sees two melted spots approximately 6cm apart. The microwave says on that it operates at 24.5 GHz. Considering that the speed of light in air ose to the speed of light in a vacuum, he calculates the wavelength of...
1. Define natural selection. 2. What three conditions did Darwin conclude are necessary for natural selection to take place?
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