genetic problem

Genetics as it applies to evolution, molecular biology, and medical aspects.

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aka sweety
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genetic problem

Post by aka sweety » Fri Apr 20, 2007 11:13 am

hi there

i have this genetic problem question to do.
i just want to know how i can start with it as the answer needs to be typed.

the question is
Tall, cut leaved tomato plants are crossed with dwarf, potato-leaved plants giving in the F generation nothing but tall, cut leaved plants.these are allowed to cross with each other producing in the F2 generation
926 tall, cut leaved
288 tall, potato-leaved
293 dwarf, cut-leaved
104 dwarf, potato-leaved

what explanation can be offered for these results.

to explain this how do i go about it.
is it that i need to say what the genotype is, phenotype etc.

thanks to anyone who can help

blcr11
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Post by blcr11 » Fri Apr 20, 2007 1:28 pm

9:3:3:1 ring any bells?

Darby
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Post by Darby » Fri Apr 20, 2007 3:44 pm

Your first generation offspring tell you what's dominant and recessive; from there it's good old Mendelian combinations among the hybrids.

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