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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 else can I help you with?
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.
Can gene mutations be passed on?
Yes, gene mutations can be passed on from one generation to the next through a process known as germline transmission. This means that the mutation is present in the reproductive cells and can be inherited by offspring.
Unit of inheretince that is passed from parent to offspring?
The unit of inheritance that is passed from parent to offspring is called a gene. Genes are segments of DNA that contain the instructions for building and maintaining an organism's cells and tissues, and are responsible for the transmission of hereditary traits from one generation to the next.
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.
How many individuals in Generation II of the family have the gene for nearsightedness?
Two individuals in Generation II carry the gene for nearsightedness.
A recessive lethal gene exists in a population and remains for several generations Which woman could have passed the recessive lethal allele to offspring but not have the disease herself?
a woman who is heterozygous for the gene
Can a Mutation can be called a Deformity?
A mutation can be called a deformity, because a mutation is passed on, it is like a gene being passed down the pedigree, and in the pedigree there can be a deformity that will be passed on to the next generation. :.
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.
What is the duration of The Gene Generation?
The duration of The Gene Generation is 1.6 hours.
When was The Gene Generation created?
The Gene Generation was created on 2007-09-27.
Can gene mutations be passed on?
Yes, gene mutations can be passed on from one generation to the next through a process known as germline transmission. This means that the mutation is present in the reproductive cells and can be inherited by offspring.
A gene that interrupts the normal functioning of life processes and results in death is a?
a lethal gene
Unit of inheretince that is passed from parent to offspring?
The unit of inheritance that is passed from parent to offspring is called a gene. Genes are segments of DNA that contain the instructions for building and maintaining an organism's cells and tissues, and are responsible for the transmission of hereditary traits from one generation to the next.
How does heridity work?
i think, heredity works on the structure of the genes.. whatever experiance, tribulation or situation a person is under going is stored in his or her gene with or with out his knowing. this same gene is passed to the next generation.....
Can Cancer be genetic?
There are some medical reports that cancer can be passed through your gene lines. But, the research also suggest that it can miss a generation or be completely random in it's activation along the gene line.
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.
What are the causes for male receding hairline?
Genetics is the main cause of a receding hairline in men. Your mother or father can have the gene that causes hair loss. Dihydrotesosterone, which is a substance derivative of androgen, is what is passed on from generation to generation.
