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A male fruit fly with red eyes and long wings is mated to a female with brown eyes and short wings.The F1 offspring consist of red-eyed, long-winged females and red-eyed, short-winged males.The F1 are intercrossed to produce an F2. Both sexes of the F2 show the following phenotypes in the ratios indicated.3/8 red eyes, long wings3/8 red eyes, short wings1/8 brown eyes, long wings1/8 brown eyes, short wings.Use the symbols R and r for eye color, and W and w for wing length. Determine the modes of transmission for the genes controlling eye color and wing length in these flies and answer the following questions.a. Which forms are dominant? (circle one form of each gene) red or brown long or shortb. What are the genotypes of the following individuals? (fill in the blanks) Parental males: ___________ Parental females: _________ F1 males: ___________ F1 females: __________
How is sex determined in grasshoppers? Can you find out other examples of organisms with a similar system of sex determination.What syndrome is defined by an XXX genotype.
A semipermeable membrane separates two aqueous solutions at thirty degrees C. For each of the following cases, name the solution into which a net flow of water.
When some individuals are startled they hyperventilate. Why is this occurring? List the vessels in order of ascending pressure within the circulatory system
Organize the genotype in the table, define the origin (parental, single cross-over progeny and double-crossover progeny) and find out the order of the genes on the chromosome.
find difference between the amino acids
What is the possibility that this child will have red-green color blindness? Figure the cross.
Explain how this classification scheme presents different conclusions about the relationships among living organisms than those presented by the previous five-kingdom system of classification.
Nutrients from the food we eat must be absorbed into bloodstream so that they can be delivered to various parts of the body.
A generalized transducing phage is used to transduce an a-b- c- d- e- recipient strain of E. coli with an a+ b+ c+ d+ e+ donor.
find which of the following describes the type of the reaction(s) catalyzed: condensation (carbon-carbon bond formation); dehydration (loss of water); hydration (addition of water); decarboxylation (loss of CO2); oxidation-reduction; sutrate-level..
What proportion of progeny would PHENOTYPICALLY resemble.
Ribozymes have various catalytic activities with reactions that follow classical enzyme kinetics other than with low catalytic rate.
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