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Complementation – Cross 1 making the heterozygous males PowerPoint Presentation
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Complementation – Cross 1 making the heterozygous males

Complementation – Cross 1 making the heterozygous males

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Complementation – Cross 1 making the heterozygous males

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  1. Hermaphrodite Parent genotype Male Parent genotype X Complementation – Cross 1 making the heterozygous males Female gametes Male gametes Progeny genotype Progeny phenotypes and ratios

  2. Hermaphrodite Parent genotype Male Parent genotype X Complementation – mutations in different dpy genes Female gametes Male gametes Progeny genotype Progeny phenotypes and ratios WHY might there be some Dpy hermaphrodites?

  3. Hermaphrodite Parent genotype Male Parent genotype X Complementation – mutations in the same dpy gene Female gametes Male gametes Progeny genotype Progeny phenotypes and ratios Why are we looking for Dpy males when the mutations are in the same gene?

  4. Symbols to Know for Crosses • a//a – a is the allele and // represents the chromatids – there are two for a diploid organism – sometimes written as / • a b//a b – two different genes on the same chromosome • a//a ; b//b – two different genes on different chromosomes • X – symbolizes mating between two different individuals • X - symbolizes a self cross – when the hermaphrodite worms fertilize their own eggs