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Why is it necessary to have a different mechanism for sexual reproduction, and how does the process of meiosis fulfill this purpose? What do you think are the advantages of this mechanism?
Kin selection theory can help explain.
You have identified that flame wing (fw) is linked to blue eyes (be) and short legs (sl) on chromosome 2. You cross a fw, be, sl fly with flies containing various deletions within the 200 Kb.
Assume that you measure the OD of two E.coli cultures: culture A and culture B. The spectrophotometer gives you a reading of 3.2 for culture A and 0.01 for culture B. What would you do to determine the concentration of culture A and B and why? Giv..
Describe the activity of the bacterial lac operon when glucose it present and when it is not present (include whether or not lac operon genes are expressed and why) also include points a, b, and c below;(a) Why does lactose act as an inducer?
For each of the E. coli strains given below, estimate the effect of the genotype on expression of the trpE and trpC genes in the presence and absence of tryptophan.
Baron von Quacko, famous tag-team wrestler, has a famous "sleeper hold" that he uses on his opponents. Using only a single digit on each hand, he presses on his opponent's neck until his opponent passes out. What are the structures on which he is ..
Explain how a mutation could inhibit the binding of sigma factor to DNA. Describe two specific base substitutions you think would inhibit the binding of sigma factor.
In Drosophila ebony body color and being eyeless are both autosomal recessive traits. An ebony fly is mated with an eyeless fly & F 1 are all wild type.
Suppose that you discover a new plant species that seems to survive under a wide variety of environmental conditions. Explain an effective, but low budget approach to discern.
in pea plants, round seeds (R) are dominant to wrinkled seeds (r). For the cross between two pea plants with the genotype Rr and rr, list phenotypes of the parents, draw the punnet square, list the possible genotypes and phenotypes for offspring o..
Toxic Chemicals in the tissues of organisms higher up in the food chain. are more concentrated than they are in the environment.
how to express the number of types of gametic chromosomal.
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