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Heamophilia A is caused by an impairment of a protein (clotting factor VIII deficiency) which is used to prevent clots. It is also used to produce fibrin, which is used in platelet activation. Without platelets, cellular differentiation is severely limited, leading to pre-natal death.
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What type of gene has Identical alleles?
A homozygous gene has identical alleles. Homozygous means the individual has two copies of the same allele for a particular gene.
An individual with two identical alleles of a gene is?
An organism that has two identical alleles for a trait is known as a homozygote or a homozygous organism.
Why are lethal homoygous recessive disease are rarley elimimated from a population?
Because as they are homozygous recessive they are only lethal when a person inherits an allele from both parents, meaning that each parent must be heterozygous carriers of the gene, and even then it's only a 1 in 4 chance that the offspring will be homozygous recessive and therefore it's unlikely they will die. And if they do not die then the will survive to likely pass on the gene.
When both parents contribute to the gene pair are recessive the pair is referred to as the?
The gene pair is referred to as homozygous recessive. This means that both copies of the gene are recessive, resulting in the expression of the recessive trait.
How can a lethal gene be passed from one generation to the other?
If the lethal gene is recessive, and the parent carrying it is heterozygous for that gene, it can be passed down to offspring in the recessive form. If the mate of the parent happens to be carrying the same gene heterozygously, 50% of offspring will be expected to inherit the recessive lethal gene heterozygously. 25% of the offspring will be expected to inherit the lethal gene homozygously, leading to death. The remaining 25% of offspring we will expect to homozygously inherit the non-lethal gene. 1:2:1 ratio
The mortailty rate of lethal white foals is?
if the foal is a true homozygous for the lethal white gene then it is 100% mortality. The colon is under-developed and can not be corrected for at this time with surgery.
What is the lethal gene cambination in horses?
One of the main ones is OLW (overo lethal white) or LWS/LWO which occurs when two paint/pinto horses with the OLW gene both pass it to their offspring. The resulting in a white/nearly white foal that also has a defective intestinal tract and dies or is euthanized.
What type of gene has Identical alleles?
A homozygous gene has identical alleles. Homozygous means the individual has two copies of the same allele for a particular gene.
An individual with two identical alleles of a gene is?
An organism that has two identical alleles for a trait is known as a homozygote or a homozygous organism.
Why are lethal homoygous recessive disease are rarley elimimated from a population?
Because as they are homozygous recessive they are only lethal when a person inherits an allele from both parents, meaning that each parent must be heterozygous carriers of the gene, and even then it's only a 1 in 4 chance that the offspring will be homozygous recessive and therefore it's unlikely they will die. And if they do not die then the will survive to likely pass on the gene.
When both parents contribute to the gene pair are recessive the pair is referred to as the?
The gene pair is referred to as homozygous recessive. This means that both copies of the gene are recessive, resulting in the expression of the recessive trait.
What is a gene combination for a single trait?
homozygous dominant, heterozygous, or homozygous recessive
How can a lethal gene be passed from one generation to the other?
If the lethal gene is recessive, and the parent carrying it is heterozygous for that gene, it can be passed down to offspring in the recessive form. If the mate of the parent happens to be carrying the same gene heterozygously, 50% of offspring will be expected to inherit the recessive lethal gene heterozygously. 25% of the offspring will be expected to inherit the lethal gene homozygously, leading to death. The remaining 25% of offspring we will expect to homozygously inherit the non-lethal gene. 1:2:1 ratio
What is it called when an organism that has two alleles that are the same?
the organism that have two identical alleles would be called homozygous for that particular gene.
What is a good sentence with the word Homozygous?
A cell is said to be homozygous for a particular gene when identical alleles of the gene are present on both homologous chromosomes.
What is a synonym for a homozygous?
Homozygous is the state of the two alleles of a gene both being dominant.A synonym could be same and an antonym could be heterozygous.
How do you use homozygous in a sentence?
An organism is homozygous for a particular gene when identical alleles of the gene are present on both homologous chromosomes. (see related link)
