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A recessive gene will stay with a person for their entire life. Whether it will become obvious that the person is carrying a recessive gene is dependant upon how many copies of the recessive gene the person carries - the effects of a recessive gene will only become obvious if two copies of the gene are carried. Excluding the option of undergoing DNA testing for the recessive gene in question, it is perfectly feasible for a person to live the whole of their life whilst never knowing they carry a recessive gene for a certain condition.
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A cactus can either have long needles L or short needles l A cactus grower crosses two cacti what is the result what is the phenotype ratio for the cross?
All long (Ll) but carrying the recessive for short.
What is the answer to the Felix Mystery?
Felix is a type of mistry destruction. She is fantastic emotion of stupidos forgiving. Maybe matters is long but favourite way is lucky mind
How long can a person tread water?
It depends on the individual endurance.
How long does it take for someone to create a fart?
depends on the person.
Which sentence correctly describes the relationship between genes and alleles?
She inherited brown eyes, a dominant allele in both her parents.
Is a person who is homozygous recessive for a recessive genetic disese a carrier?
As long as a persons genotype consists of at least one recessive gene, they can pass it on to offspring to give them the disease, which makes them a carrier. Since this persons genes are both recessive, it is definite that they will pass on the recessive gene.
If a mouse inherits a dominant gene for a long tail and a recessive gene for a short tail what tail length will the mouse have?
whatever type of tail it wants to.Answer: When a dominant gene is present, it will always be expressed. The only time a recessive gene is expressed is when no dominant gene is present. Therefore, the mouse in question will have a long tail.
What is chromosomes theory of inheritances?
We have learned over a very long time that the chromosomes carry genes that determine who we are and what we look like. Some genes are dominate and some are recessive. A person with a widow's peak hair line shows a dominate gene for hair line. He may also carry a gene for "round" hair line but it is recessive and not seen.
Can two brown eyes make blue?
Yes, two parents with brown eyes can have a child with blue eyes if both parents carry a recessive blue eye gene. Blue eyes are a recessive trait, so both parents must carry at least one copy of the blue eye gene for it to be expressed in their child.
Does everyone have a recessive gene?
Yes, everyone has two copies of each gene in their DNA, one from each parent. This means that everyone carries both dominant and recessive genes, although not all individuals will display the recessive traits.
Can a person be a carrier for a dominant genetic disorder?
Anyone can be a carrier of a recessive genetic disorder (as long as it is not associated with the sex chromosomes) no matter what their gender since "carrier" refers to an individual that is heterozygous for the recessive allele and therefore phenotypically normal. Specifically, sexlinked genetic disorders can be "carried" by a heterozygous female but males (having only one X chromosome) cannot. Males will either be free of the defective gene or be affected.
What is the probability that a woman who is a carrier of the colorblind gene and a color blind man will have a first son who will be color blind?
The probability is 0 (but the daughter will be a carrier of the color blind gene). This is because the gene dictating whether someone is color blind or not is linked to the X chromosome (and not the Y). The color blind gene is a recessive gene whilst the normal color vision gene is a dominant gene. Hence if a girl (XX) has one normal vision gene (from one parent) and one color blind gene (from the other parent), her normal vision gene will be dominant to the recessive color blind gene and hence she will have normal vision (but she will be a carrier of the color blind gene). If both her parents contribute the recessive color blind gene to her, then she will be color blind. For a woman (XX) to be color blind, she needs to be have both genes to be recessive (ie where there is no dominant normal color vision gene to dominate). For a man (XY), as long as the X gene contributed by his mother is a color blind gene, he will be color blind because he has no other X chromosome where a dominant normal color gene could reside. Hence, to answer the question, a man with normal color vision (XY, with a dominant normal color vision X gene since the gene can't be the recessive color blind gene otherwise he will be colorblind) and a colorblind woman (XX, both recessive color blind genes), will each contribute an X each the child. The man will contribute his only X chromosome which carries the normal color vision X gene and the woman can only contribute a recessive color blind gene. The man's normal color vision X gene will be dominant, and hence the daughter will definitely have normal vision (despite being a carrier).
If mother is A positive and dad is A positive what is the child's blood type?
My husband is A+ and I am O-. We have two children. Our daughter is O+ and our son is A+. A is dominant, O is recessive. + is dominant, - is recessive. Therefore in this situation it is possible to have children with O+, O-, A+, and A- so long as the father carries the recessive genes.
Are dominant or recessive alleles easier to remove by selection?
Recessive alleles are typically easier to remove by selection because they are masked by dominant alleles in heterozygous individuals. This allows the recessive allele to persist in the population at lower frequencies, making it more susceptible to selection pressure. Dominant alleles, on the other hand, are expressed in the phenotype even in heterozygous individuals, making them more resilient to selection.
What is a heterozygous recessive?
Homogeneous recessive is two like genes that express a recessive trait.
What evidence is there that the long and round did not become blended?
A number of genetic disorders are caused when an individual inherits two recessive alleles for a single-gene trait. Recessive genetic disorders include Albinism, Cystic Fibrosis, Galactosemia, Phenylketonuria (PKU), and Tay-Sachs Disease. Other disorders are also due to recessive alleles, but because the gene locus is located on the X chromosome, so that males have only one copy (that is, they are hemizygous), they are more frequent in males than in females.
What evidence is there that the long round allels did not become blended?
A number of genetic disorders are caused when an individual inherits two recessive alleles for a single-gene trait. Recessive genetic disorders include Albinism, Cystic Fibrosis, Galactosemia, Phenylketonuria (PKU), and Tay-Sachs Disease. Other disorders are also due to recessive alleles, but because the gene locus is located on the X chromosome, so that males have only one copy (that is, they are hemizygous), they are more frequent in males than in females.
