If 50% recombination occurs (two parental types and two recombinant gametes), th
ID: 164880 • Letter: I
Question
If 50% recombination occurs (two parental types and two recombinant gametes), the transmission is then indistinguishable from independently assorting genes. Yes No Assume that a cross is made between AaBb and aabb plants and that offspring occur is the following numbers: 1060 AaBb, 480 Aabb, 520 aaBb, 940 aabb. These results are consistent with _____. sex-linked inheritance with 30 percent crossing over linkage with approximately 33 map units between the two gene loci linkage with approximately 30 map units between the two gene loci independent assortment 100 percent recombination Methods for determining the linkage group and genetic map in humans involve _____ DNA markers twin spots and tetrad analysis tetrad analysis and bromodeoxyuridine zygotene and pachytene DNA synthesis chiasmatype and classical analyses In a population of 100 individuals, 49 percent are of the NN blood type. What percentage is expected to be MN assuming Hardy-Weinberg equilibrium conditions? 9 percent 21 percent 42 percent 51 percent There is insufficient information to answer this question. Albinism is an autosomal recessive trait in humans Assume that there are 100 albinos (aa) in a population of 1 million. How many individuals would be expected to be homozygous normal (AA) under equilibrium conditions? 100 10,000 19, 800 980, 100 999, 900 Which method is often used to analyze proteins and nucleic acids by physical separation when estimating genetic variation in populations? electrophoresis centrifugation absorption spectrophotometry fluorometry in situ hybridizationExplanation / Answer
29. No
Two allele combinations will represent the linkage arrangements on the parental chromosomeand these combinations will each be transmitted at frequency of greater than 25%. The remaining two classes will represent recombinant arrangements that will be transmitted at a frequency below 25%.
30. DNA markers