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- Question 6 True or False. Nonhomologous endjoining usually alters the DNA by deletions or insertions. True FalseQuestion: This is a normal 3 point test cross, except that instead of regular phenotypes, you are looking at DNA markers on a gel. One parent, according to the gel, is heterozygous at each marker. The other parent is homozygous for each marker. (Again, this means it is a test cross: AaEeHh x AAEEHH --but don't be confused by that, because these are not "dominant" and "recessive" per se; the phenotype is just a band on a gel). For each offspring, figure out its genotype (homozygous or heterozygous for each gene. Then, figure that one parent made only AEH gametes, so you can cross that out if it helps.) Then treat it pretty much the same as a 3 point test cross.Question- 1. In onions, male sterility is due to the interaction of a chromosomal allele pair hh and “sterile” (S) cytoplasm. All other combinations (i.e. HH/Hh and “sterile” cytoplasm, HH/Hh or hh “fertile” (F) cytoplasm) result in male-fertile plants. The male-sterile trait is incorporated into inbred lines to produce hybrid F1 seed on a commercial scale.a) How would you perpetuate the male-sterile line? Show the cross.b) Briefly outline the method of producing hybrid seed (heterozygote) for the commercial crop. Show the cross.c) Does it matter whether the cytoplasm is fertile or sterile in the male-fertile inbred? Explain.
- The two forms of recombination are general and _____________.Question 2. You have a wild-type strain of E. coli with the genotype A B C D EF You introduce an F+ plasmid into your wild-type strain and isolated a few Hfr derivative strains that you call Hfr1, Hfr2, and Hfr3. You are studying several new genes in E. coli with interesting phenotypes. You obtain a multiply mutant strain with chromosomal genotype: a b c d e f a) You mate each Hfr strain to your multiply-mutant strain in a separate experiment. At various times you interrupt the matings and plate the bacteria under conditions in which only the recipient strain can grow. You obtain the following earliest-time-of-entry data, in minutes: Gene Hfr1 Hfr2 Hfr3 A B C D E F 11 13 7 I 26 16 11 9 5 31 15 27 31 11 Draw a map of these genes that is consistent with the data, including all the genes and Hfr origins, the distances between them (in minutes), and the direction of transfer of each Hfr.b) Among the progeny from the Hfr3 mating above, you find one that has the genotype: Abc de F Draw out the gene transfer and crossover(s) that produced this outcome: c) Among the progeny from the Hfr3 mating above, you find one that has the genotype: A B c d e f Draw out the gene transfer and crossover(s) that produced this outcome:
- question- Color blindness is inherited as a sex-linked recessive disease. A normal male marries a female who is heterozygous for the trait. What percentage of their sons will exhibit color blindness?O e. Penetrance QUESTION 10 Sickle-cell anemia is a human disorder caused by a recessive allele (HbS) for the hemoglobin gene found on chromosome #11. The normal allele (HbA) is dominant. Mary has sickle-cell anemia, and she marries Steve, who does not have the disease. Mary and Steve have one kid Rosa, who has sickle-cell anemia. What is Steve's genotype? Oa. HbS Ob. HbSHbS O c. HbAHbS O d. HbAHbA Oe. Cannot be determined ck Save and Submit to save and submit. Click Save All Answers to save all answers. 7 20 # 3 $ 4 % 5 MacBook AirRestriction mapping of the delta chromosome I need help with question two please
- | Choose J [Choose] repetitive DNA transposable elements transposon retrotransposon pseudogenesQuestion 23 Match the following events in the recombinant DNA and cloning process Prompts gene of interest and the DNA vector are separately cleaved to generate ends that can join DNA is introduced to host cells vector DNA and the gene of interest are joined together only the clones with the recombinant DNA are used for downstream applications Submitted Answers Choose a match transformation marker-assisted selection directional cloning ligation by a ligase action restriction enzyme cleavageQuestion 17 Main Content sults following a FISH chromosomal painting experiment. Now what do you think this variation indicates? Chr5 a SNP Oa CNV a translocation from another chromosome a truncation of one homolog of this chromosome