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Genetics

Genetics

(Science: study) The study of the patterns of inheritance of specific traits. Relating to genes and genetic information. Also known as heredity. Modern theories explain how traits are passed down from parent to offspring. The first to test this theory was gregor mendel, a monk from Austria who tried to explain why some pea plants were short and some were tall, but none were in between. He placed nets over the plants so no bees or flies could pollinate the plants. Pea plants are one of the few plants capable of self pollination, so Mendel tried this with short plants and all were short, so he expected that the same thing would happen with the tall plants. But when he tried it, 75% were tall and 25% were short. This was when he used a punnett Square. A punnett Square is a model used to predict the possible outcomes of offspring.


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Question about hair color and tallness inheritance

Hello there! So i dont know much about genetics yet, but im very open minded about it. The situation is my father has dark brown hair and he had a wife back then and they made two children but they divorced. Both of the children have ginger ...

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by hitom
Thu Aug 07, 2014 9:58 pm
 
Forum: Genetics
Topic: Question about hair color and tallness inheritance
Replies: 0
Views: 143

Re: Re:

Unless you're suggesting that some "races" have better genetics than others. Allele frequencies vary between poopulations. The question is not whether there's a difference (in genetic IQ predisposition), but how large that difference is. I think ...

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by wildfunguy
Wed Jul 30, 2014 8:50 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 257257

Brain size=IQ level theory (Blacks vs Whites & Asians)

No one doubts that genetics play a vital role in intelligence. But we're all creatures of genetics, aren't we. Unless you're suggesting that some "races" have better genetics than others. If that is indeed the case then the ...

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by wildfunguy
Wed Jul 30, 2014 8:20 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 257257

Re:

... skin color is a determiner of IQ and skin color is genetic, that would be counted as a genetic influence on IQ in a twin study. No one doubts that genetics play a vital role in intelligence. But we're all creatures of genetics, aren't we. Unless you're suggesting that some "races" have ...

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by Seth90210
Fri May 23, 2014 4:23 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 257257

Genetics Pedigree Help Required

Based on the information in the pedigree of Family B, is inheritance of this hearing loss trait consistent with an autosomal dominant or autosomal recessive pattern? (Tip: assume autosomal dominant and assign genotypes of affected and unaffected individuals, then assume autosomal recessive and assig...

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by TheBell
Fri Mar 21, 2014 8:49 pm
 
Forum: Genetics
Topic: Genetics Pedigree Help Required
Replies: 0
Views: 1357
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