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Why are dominant alleles that cause lethal disorders less common that recessive alleles that cause lethal disorders?
A lethal dominant gene prohibits the organism from reproducing irregardless of the paired gene, so it is removed from the gene pool as soon as it appears. A lethal recessive gene, on the other hand, does not prevent reproduction unless it is paired with another lethal recessive, so it may be passed down through many generations before becoming paired and preventing reproduction.
A healthy individual is a carrier of a lethal allele but is unaffected by it what is the probable genotype of this individual?
N-normal l-lethal Nl so, dominant normal and recessive lethal, making him/her normal but carries a lethal allele.
Why are recessive disorders more common than dominant disorders?
dominant traits show up in the first generation so any disorders have a 50% percent chance of showing up in offspring. recessive traits skip a generation therefore any diseases would have on a 25% chance.
What is dominant lethal allele?
Dominant lethal is a genetic trait. If the genome of an individual has the trait, it is expressed and makes it impossible for the individual to have descendants. Its effects cause foetal or embryonic death.
Which is more rare green eyes or amber eyes?
Green eyes are more rare than blue eyes. Brown eyes are the dominant characteristic, so they're not rare at all. Green eyes are rare, because it tends to occur when a brown-eyed/green-eyed couple have a baby. Most of the time, that baby will have brown eyes (since brown eyes are dominant). However, sometimes, the baby can have green eyes.
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 the difference between a lethal and nonlethal contagion?
the difference between nonlethal and lethal is that they both have lethal in there but non means no so nonlethal means no lethal at all. judy wardell=]
How can a lethal allele continue to be present in a gene pool even when they are selected against?
A harmful recessive allele remains in the population because both homozygous dominant and heterozygous genotypes produce the dominant, healthy phenotype. So the heterozygous genotype keeps the harmful recessive allele in the population.
Is the mutation asthma recessive or dominant?
Asthma doesn't have a gene so its neither
Is lethal injection legal?
yes lethal injection is mostly a type of execution method so it is cosidered legal
Sentence for the word lethal?
I'm lethal to ciggarett smoke "She was fatally injured due to a lethal stab to the chest" "She didn't know she had an allergy so consumption was lethal" "He was sentenced to lethal injection"
How is Ryback so Dominant in the ring?
Ryback is so dominant in the ring because he is just pure power.
