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Red hair (R gene) and freckles (F gene) are controlled by two different genes that are tightly linked on chromosome 16. Red hair is recessive to brown hair, whereas having freckles is a dominant trait. Although people with red hair and freckles often have blue eyes, the eye color gene (E gene) is on chromosome 15 and thus sorts independently from the other two genes. Blue eyes are recessive to brown eyes. An individual with genotype RRffEE mates with an individual with genotype rrFFee.
1) What is the genotypic and phenotypic ratio of the offspring? Show your work with a Punnett Square.
2) One of these offspring grows up and marries a man who is rrffee. What is the phenotypic ratio of their offspring (i.e., the grandoffspring of the original parents)? Show your work with a Punnett Square.
3) Suppose all three genes are very tightly linked. What would the phenotypic ratio of the grandoffspring be under this scenario? Show your work using a Punnett Square.
What is the narrow-sense heritability for these Turkeys. Would this estimate be accurate if offspring and parents received a different diet? Explain.
What is an electrogenic pump and what are some examples of electrogenic pumps in the biological systems?
In labrador retreivers, black fur color is dominant to chocolate fur. A breeder crosses two heterozygous labs, resulting in a litter of nine puppies.
distinguish between the starting sequences, ending sequences, and enzymes used to initiate, polymerize, and terminate replication, transcription and translation.
Most cellular activities involve converting energy form one form to another. For each of the following cases, give a biological example and explain the significance of the conversion.
If an animal needed to store energy for long-terms use, but not be encumbered with the weight of extra tissue, which is the best molecule for storage.
In what way may we be able to take advantage of retrotransposons in human gene therapy? How would this differ from our current use of retroviruses?
q1. if a component of a mixture of organic molecules was absolutely insoluble in the mobile phase used in a tlc
Write out the reactions of the glycolytic pathway starting from glucose to pyruvate. Starting with radiolabeled glucose labeled in the C1 position, where does the label ends up in pyruvate? (e.g. use a highlighter pen or an asterisk)
Living organisms are composed mainly of which elements?
Which of these statements is true of earthworms?
think about your personal habitat and niche. what is the typical habitat of a human? describe the niche of homo
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