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Examples of particulate inheritance?

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

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Examples of particulate inheritance?

Postby Jo-D » Fri Apr 21, 2006 6:57 am

I have had trouble distinguishin the real meaning of this, (i apologize for my limited understandings), can anyone give me some examples of this? I heard that tongue-rolling, flower cloour in sweet peas and black sheeps r examples of this, but wat else?

Thanks for your time!
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Postby LaurierU » Fri Apr 21, 2006 2:18 pm

they are simple gene combinations between dominant and recessive genes
for example tongue rolling is one, being able to roll your tongue is dominant while not being able to is recessive
Let 'U' be the dominant trait and 'u' be recessive
then its a simple cross between parents for possible genotypes
like UU x uu
that would give all children Uu therefore tongue rolling

Some types:

tongue rolling
interlacing fingers
darwin's ear point
attached ear lobes
widow's peak
hair whorl
bent little finger
hithicker's thumb
mid-digital hair
dimples
albinism
PTC tasting
Pattern Baldness
Red-Green colour blindness

if you want to know which aspects of each or dominant just ask :)
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Postby Jo-D » Sat Apr 22, 2006 11:18 am

thanks so much! greatly appreciated
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