Dictionary » S » Sex-linked trait

Sex-linked trait

Definition

noun, plural: sex-linked traits

A trait genetically determined by an allele located on the sex chromosome


Supplement

Since traits are sex-linked, there is usually a distinct pattern. For example, color blindness is a sex-linked trait whose allele is recessive and located on the X chromosome.

When the mother is color blind and the father is not:

  • all sons are going to be color blind
  • daughters are normal but carriers of the gene

When the father is color blind and the mother is not:

  • all sons are normal
  • all daughters are normal but carriers


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need help with some home work

... on the alleles which have been expressed-the person can turn out to be tall if he has-Tt(heterozygous) or TT(homozygous).-Here T is the dominant trait over t. whereas the person will become dwarf only if both the alleles for the gene is tt. (I hope this explanation of mine made some sense! ;-)) ...

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by Athira
Fri Jan 16, 2015 7:33 am
 
Forum: Genetics
Topic: need help with some home work
Replies: 2
Views: 916

Re: Mendel's Law

... a red color. The first step that takes place in reproduction is for the sex cells in plants to divide into two halves, called gametes. The next step ... that develops from that zygote would said to be heterozygous for that trait since its gene for flower color has two different alleles. If the ...

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by Sheppie
Wed Dec 03, 2014 7:41 am
 
Forum: Genetics
Topic: Mendel's Law
Replies: 2
Views: 2419

Point me in the right direction?

... apologies for how random this may first seem. I am a hobby breeder of freshwater shrimp . The caridina cantonensis species often display a golden trait, which means they are blind. What i have noticed is that these shrimp are also unable to display white pigment on their bodies like other shrimp. ...

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by Dinch
Mon Sep 29, 2014 8:52 am
 
Forum: General Discussion
Topic: Point me in the right direction?
Replies: 0
Views: 947

Recessive and dominant genetics - Pitx1 case study

... hind limbs between the normal and Pitx1 -/- experimental embryos. " I feel that it would cause the mice to be born with no pelvis because the trait is recessive, however i am not sure? Is there anyone to shed light on this for me? The 2nd question in this reading is involving active and in ...

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by scienceguy914
Mon Sep 08, 2014 1:44 am
 
Forum: Genetics
Topic: Recessive and dominant genetics - Pitx1 case study
Replies: 0
Views: 3274

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

... of Europe I wasn't suggesting that skin color directly effects intelligence. I was suggesting that because skin color, a largely genetic trait, affects how a person is treated, an environmental effect, it will be counted as a genetic influence under the ACE model even though melanin-depositing ...

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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: 75
Views: 332492
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