Biology, 20.02.2020 20:03, georgesarkes12
The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype R1 R1, silver coat by the genotype R1 R2, and platinum color by R2 R2. White spotting of the coat is a recessive trait found with the genotype ss. Solid coat color is found with the S - genotype.
a. What are the expected progeny phenotypes for the cross Ss R1 R2 x ss R2 R2
b. If the cross SsR1R2 x SsR1R1 is made, what are the progeny phenotypes and in what proportions are they expected to occur?
c. Two crosses are made between mink. Cross 1 is the cross of a solid, silver mink to one that is solid, platinum. Cross 2 is between a spotted, silver mink and one that is solid, silver. The progeny are described in the table below. Use these data to determine the genotypes of the parents in each cross.
cross spotted, platinum spotted, silver spotted, red solid, platinum solid, silver solid, red
1 2 3 0 6 5 0
2 3 7 2 4 5 3
Answers: 2
Biology, 22.06.2019 12:00, yesseniaroman21
Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.
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Biology, 22.06.2019 20:10, shawn20034
True or false 5. carrier proteins have the ability to to change shape and physicially move molecules across the cell membrane. 6. in a facilitated diffusion, the concentration of the molecules to be moved across the cell membrane is higher inside the the cell.
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The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is...
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