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Q1. In Drosophila, yellow eyes, Y, are dominant to grey eyes, y. In an experiment, Dr. D breeds two individuals, one with yellow eyes and the other with grey. He finds the offspring to be 131 yellow and 58 greys.
1. What are genotypes of the adult that were crossed?
2. What is the expected proportion of individuals in each group and do these numbers significantly differ?
3. Are there other probable genotypes for the adults? Is there statistical support for them?
Q2. 10 percent of a population died from sunburn, of the 10 percent who died 10 individuals were albino and the rest were split evenly between heterozygous (Gg) and dominant individuals (GG). So my question is how various individuals are Gg and GG?
According to the endosymbiotic theory, why was it adaptive for thelarger (host) cell to keep the engulfed cell alive, rather thandigesting it as food?
Think about an artificial animal cell which contains 0.3 mmol/L NaCl (MW: 58.5 g/mol) and 0.01 mmol/L glucose (MW: 180 g/mol) in the cytoplasm.
What is the phenotypic ratio you would expect to see in the F2 generation if you were following a sex-linked trait? An autosomal trait? Two autosomal dominant characters (dihybrid cross).
what Asexual reproduction tends to be favored.
A group of Ethiopians were assayed for CCR5-del32 deletion polymorphism. 223 were +/+, 64 were +/del32, and 6 were del32/del32.
Overview the development process that yields a naive T lymphocyte. Do not describe the details of TcR gene recombination.
What is the maximum distance (in map units) that can exist between two linked genes? Explain your reasoning.
Which organelle has the best structure to carry out cellular respiration? Mitochondria or Choloplasts?
What do post-Mendelian genetic concepts such as quantitative variation, polygenic traits, and pleiotropy suggest about the possible future course of genetic research?
Which sex chromosomes are present in a normal hen? Which ones are present in a normal rooster?
Suppose you analyze three phenotypes in the common fruit fly Drosophila (A,B,D). The recessive alleles causing mutant phenotypes are represented by a,b, and d.
Red-green color blindness is a sex-linked trait. If a husband and wife (whose father was color blind) both have normal color vision, what proportion of their daughters would be expected to have red-green color blindness? Explain your answer.
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