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What refers to the genotypic condition that must be present for a recessive to be visible?
Homozygous recessive refers to the genotypic condition where an individual has two copies of the recessive allele that leads to the expression of a recessive trait.
What is the difference between a homozygous dominant homozygous recessive and heterozygous individual?
They are the same
What is automasal trait?
With an autosomal recessive inheritance pattern, a person needs to have 2 copies of a gene change to have the condition. In most cases, people with an autosomal recessive condition get one gene change from the mother and one gene change from the father.The parents of a person with an autosomal recessive condition may not have the condition themselves, since each parent only needs to have one copy of the gene change. People with one copy of the gene change are called carriers, who do not have the condition, but are more likely to have children with the condition. Other family members (uncles, aunts, brothers, cousins, etc) may also be carriers.
What word is a synonym to homozygous recessive?
A synonym for homozygous recessive is "homozygous for a recessive trait." This term refers to an individual who has two identical recessive alleles for a particular gene. In genetic notation, it is often represented as "aa," where "a" signifies the recessive allele.
WHAT IS THE PROBABLITY OF A HOMOZYGOUS RECESSIVE INDIVIDUAL (ss) producing a gamete with a dominat allele?
A homozygous recessive individual (ss) carries two copies of the recessive allele and does not possess a dominant allele. Therefore, when this individual produces gametes, all gametes will carry only the recessive allele (s). Consequently, the probability of a homozygous recessive individual producing a gamete with a dominant allele is 0%.
In biology an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition?
carrier
What refers to the genotypic condition that must be present for a recessive to be visible?
Homozygous recessive refers to the genotypic condition where an individual has two copies of the recessive allele that leads to the expression of a recessive trait.
Is cystic fibrosis carried on a dominant of recessive gene?
Cystic fibrosis is an autosomal recessive genetic disease.
A recessive trait can only be expressed when?
A recessive trait can only be expressed when an individual has two copies of the recessive allele, one inherited from each parent. If only one copy is present, the dominant allele will be expressed instead.
What is the percentage of offspring that will exhibit the dominant trait from A crossing of A homozygous dominant and homozygous recessive individual?
The homozygous dominant individual can only pass on the dominant allele and the homozygous recessive individual can only pass on the recessive allele, therefore all offspring will be heterozygous and have the dominant phenotype.
How is cystic fibrosis transfered by genes?
this condition is inherited in an autosomal recessive pattern ,which means both copies of the gene in each cell have mutations,the parents of an individual with autosomal recessive condition each carry one copy of mutated gene but they typically do not show symptoms or signs of the condition
All individuals that show a recessive trait are?
recessive trait only appear when an individual is homozygous recessive, both alleles must code for the recessive trait
What is the difference between a homozygous dominant homozygous recessive and heterozygous individual?
They are the same
What is automasal trait?
With an autosomal recessive inheritance pattern, a person needs to have 2 copies of a gene change to have the condition. In most cases, people with an autosomal recessive condition get one gene change from the mother and one gene change from the father.The parents of a person with an autosomal recessive condition may not have the condition themselves, since each parent only needs to have one copy of the gene change. People with one copy of the gene change are called carriers, who do not have the condition, but are more likely to have children with the condition. Other family members (uncles, aunts, brothers, cousins, etc) may also be carriers.
What is the difference fom heterozygous and homozygous recessive?
In genetics, you can either have a dominant allele (A) or a recessive allele (a). Being homozygous means that you have both of either a dominant or a recessive allele (ie you are either AA or aa). If the trait is a recessive trait, then you need to have it be homozygous recessive in order to express that trait. Hope this was helpful! :-)
If a test cross between a homozygous recessive and heterozygous allele will yield what percent of offspring as homozygous recessive?
A test cross between a homozygous recessive and a heterozygous individual will yield 50% of offspring as homozygous recessive. This is because all the offspring will inherit one recessive allele from the homozygous recessive parent.
In crossing a homozygous recessive with a heterozygote what is the chance of getting a homozygous recessive phenotype in the F1 generation?
1/2 or 50%. The homozygous recessive gentoype contains two recessive alleles for the gene for a trait. So the homozygous recessive individual can pass on only recessive alleles to an offspring. The heterozygous individual has one dominant and one recessive allele for the gene for a trait. So the heterozygous individual can pass on either a dominant or a recessive allele to an offspring. So if an offspring inherits a recessive allele from the heterozygous parent, along with the recessive allele from the homozygous recessive parent, it will have the homozygous recessive genotype and phenotype.
