The DNA diversity of maize is not the same as the DNA diversity of teosinte. Is maize DNA diversity higher or lower than teosinte? Explain two reasons for why this is the case.
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- . Explain how mixtures of different cpDNAs in the sameorganism account for variegation in plants.A heterozygous reciprocal translocation involving 2 non-homologous chromosomes resulted to a new sequence ABCDXYZ and TUVWEFG. Illustrate the chromosomes before and after translocation and the pachytene configuration of the chromosome after translocation.Give only typing answer with explanation and conclusion What is the locus specific rate of substitution for two lineages that separated 12,963,786 year ago and differ at 25 of 878 nucleotides.
- Based on one strand of a certain segment of DNA with the sequence below, answer the following question: 3'-ATGGATCCCATC-5' a. What are some causes of phenotypic variation within a species?A. What is the wild progenitor of maize and where is it found? B. George Beadle concluded that this plant was the likely ancestor of maize (corn) even though the two plants appear very different. What evidence did Dr. Beadle collect that led to his conclusion? C. How long ago was maize domesticated and what evidence was utilized to determine this? D. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?In an electrophoretic gel across which is applied a powerful electrical alternating pulsed field, the DNA of the haploid fungus Neurospora crassa (n = 7) moves slowly but eventually forms seven bands, which represent DNA fractions that are of different sizes and hence have moved at different speeds. These bands are presumed to be the seven chromosomes. How would you show which band corresponds to which chromosome?
- In an electrophoretic gel across which is applied a powerful electrical alternating pulsed field, the DNA of thehaploid fungus Neurospora crassa (n = 7) moves slowlybut eventually forms seven bands, which represent DNAfractions that are of different sizes and hence havemoved at different speeds. These bands are presumed tobe the seven chromosomes. How would you show whichband corresponds to which chromosome?what is alternate segregation patternCalculate the map distances between the three loci.
- Suppose that the seven chromosomes in Figure 18-4arepresent a random sample of chromosomes from apopulation.a. Calculate gene diversity (GD) separately for theindel, the microsatellite locus, and the SNP at position 3.b. If the sequence was shortened so that you had dataonly for positions 1 through 24, how many haplotypeswould there be?c. Calculate the linkage disequilibrium parameter (D)between the SNPs at positions 29 and 33.In your own words, explain the laws of segregation and independent assortment from a molecular perspective. Alternatively, create your own analogy to illustrate these laws.Besides the reasons listed in this feature,what other reasons would make the peaplant a better object for genetic study thanhumans?