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The genes a, b and c are on the same chromosome in Neurosopora, which produces ordered asci. The following asci were obtained from a cross between a b + and + + c Neurospora. The numbers indicate the numbers of asci of each type. Determine the correct gene order and all gene to gene and gene to centromere map distances.
45 5 146 1 10 20 15 58ab+ ab+ ab+ ab+ ab+ ab+ ab+ ab++bc a++ ab+ +++ a+c ++c abc +b+a++ +bc ++c abc +b+ ab+ +++ a+c++c ++c ++c ++c ++c ++c ++c ++c
Gene pairs PD NPD TT
abacbc
Genes FDS SDS
abc
Gene order and distances: include the centromere as -o-
Explain the significance of the F2 ratios Mendel obtained: why are all the ratios close to 3:1? Choose one of the traits he examined and show a Punnett square of the F2 generations to illustrate your answer.
2-experimental varieties of strawberry are produced by crossing a hexaploid line that contains 48 chromosomes and a tetraploid line that contains thirty-two chromosomes.
find out the major pathway of glycine degradation. you find that the amino acid serine contains the most radioactivity, and that both the Calpha and Cbeta carbons of the serine residue are labeled with 13C. Explain these observations.
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Would you expect any differences in the sizes of the inserts in the two libraries? in brief explain.
Ed Rivers, a 3rd year medical student, was alone in the hospital ER one night. It was unusually quiet that night, and the resident was getting some much needed sleep.
define which glucose is transported across a cell membrane. I could also really use help with finding online references on similar topics.
If you cross true-breeding four o' clock plants with red flowers to true-breeding four o' clock plants with white flowers, the resulting heterozygotes have pink flowers. What will be the ratio of red, white and pink flowers if two pink-flowered pl..
Hiking in the deserts of New Mexico you encounter a strangely shaped, entirely smooth metallic rock. Oozing from the rock is a slime mold that you believe to be a new species never before seen (on earth). The mold fluoresces bright pink normally b..
What is a signal sequence? What is a signal patch? Be sure to indicate the difference between the two signals.
Consider a circular, B form DNA molecule with a superhelical density of -0.05. Suppose that during replication initiation, a stretch of 84 base pairs unwinds (untwists) without breaking the phosphodiester backbone.
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