Question

1) Given a plant with the genotype C/cm; Ac+/Act, where om is an unstable allele caused by a Ds insertion. This plant is crossed with another plant with the genotype C/cm where cm is an unstable allele caused by Ac insertion. What phenotypes would be produced (including their proportion)? Assume that Ac and c are unlinked, that the chromosome-breakage frequency is negligible, and that mutant c/C is Ac+. 2) Is it possible for non-dividing neuronal cells to employ the homologous recombination repairing mechanism? Why or why not?

Answer 1

A unstable allele cloc system, AC Result in AC/DS system; autonomous & non tortomous Absence of DS Ac regulator gene Act | cross cross cross I parents C/AL X 4 perents clos; Ac /Act C/ cosi Acar X 4. AclAct Clanc Act / Act ₂ / F gerustim + /Ac/AR solid ponen y Ci Act Act 0%;AAC Syotte ! unstable colorlesse! spotted Result i / C i AC / Act C/ Isolid pigment) F-generation - /Ac (unstable %; A c/ Act (sold payment colourless & 75 % (A, AC/AC (3 ) 7 c/c Act/Act (soline pijani & c/AC, Act / Act (" ") Isolid 1 - c/o Act/Ad(". II spotted 4P, Ac/Ac ( SR) 1 D/Ac; Act /Act (Comitato 18 (PS/(AC, Act/Acrony Result - 13 solid: I spotted colourless { t : RESULT 2 solid Ispotted I colourless

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