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Question: Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, and the allele for purple flowers is dominant. This means that plants with two purple alleles have purple flowers. Plants with one purple allele and one white allele also have purple flowers. Only plants with two white alleles have white flowers.For each event or condition described below, answer the following questions.Which mechanism of evolution is at work?How does this event affect the population's gene pool? Do the frequencies of the two alleles change, and if so, how?
The American Chestnut Tree, which once made up more than 25 percent of North American hardwoodforests, were killed off by a deadly fungal blight that does not affect the closely related AsianChestnut Tree.
A 3-factor cross in Salmonella typhimurium was performed using bacteriopage P22. The cross between an arg-leu-his- recipient bacterium and bacteriophage P22,
What is the complementary RNA strand that is created. Assuming this sequence is within an exon and in-frame, what would be the polypeptide formed from it?
In an interview the subject explain that despite regularly drinking so much alcohol, he was able to function well enough to hold down a demanding job.
White tigers are indicated with unshaded symbols. (As you can see, there was considerable inbreeding in this lineage. For instance, the white tiger Mohan was mated with his daughter). In answering the questions, assume that hite.
Illustrate the main types of faults and corresponding directions of stress. Differentiate between fault and joint. How does the stress differ between the two? Of what importance are these fractures to other geological processes.
What is cloning's MOST IMPORTANT impact on psychology? Cloning could cause mental illness. Cloning has no impact on psychology. Cloning might be used for cures for diseases of the nervous system. Cloning may cross the lines into creating human life.
A spotted rabbit, when crossed with a solid-colored rabbit produced all spotted offspring. When these F1 rabbits were crossed among themselves they produced thirty-two spotted rabbits and ten solid colored rabbits.
The ______ avoids backflow of blood from right ventricle into right atrium. The ______ valve avoids the backflow of blood from aorta into left ventricle. The ______ valve avoids the backflow of blood from the pulmonary artery into the ______.
What part of the sewage treatment plant deals with insoluble and complex organic wastes? Which molecule contains more energy, X or Y.
Though, at the restrictive temperature, the minimum size required to enter mitosis is decreased greatly; as a result, diminutive daughter cells are produced.
The dorsal pigment pattern of frogs can be either leopard or mottled. The trait is controlled through an autosomal gene.
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