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Do genes determine inherited traits or DNA?
Dominant and recessive alleles. Genes encode for proteins, which do all sorts of functions in your cells and body as a whole. If you have a certain allele of a gene, it will code for a specific type of protein. Different alleles are why everyone looks different.
What is heterzygous in genes?
A heterozygous dominant gene is a gene that is more dominant in the gene pool but is made up of 2 diffrent traits passed from parent example: A heterzygous gene would be Tt for tall. The T stands for domintant trait as being tall and the t stands for the recessive trait short. All heterzygous means is that it is made up with 1 captial letter and 1 lowercase letter.
How does a allele cause a trait in a organism?
By definition, an allele is another form of a gene wherein it is usually subjected to a mutation in which it could be either classified as dominant or recessive. In addition, the utilization of an allele is among the common causes for determining the trait of an organism because "it causes a certain type of protein to form."
What are genetics passed from?
You get one allele, or a half of a gene, from each parent. That combination of alleles create a gene. You have different genes for each trait, but all genes are made from your parent's alleles.Read more: http://wiki.answers.com/How_do_you_inherit_genes#ixzz17AmtM8am
What happens when a person receives on alle for attached earlobes and one for unattached earlobes?
there one alle for free ear-lobes and another allele for attached if your gene for ear-lobes is made up of two alleles for free ear-lobes your ear-lobes are NOT attached and if you have two attache-ear-lobes alleles your ear-lobes are attached
Do genes determine inherited traits or DNA?
Dominant and recessive alleles. Genes encode for proteins, which do all sorts of functions in your cells and body as a whole. If you have a certain allele of a gene, it will code for a specific type of protein. Different alleles are why everyone looks different.
A test cross made with a cat that may be heterozygous for a recessive trait what is the presumed genotype of the cat explain?
If the cat is suspected to be heterozygous for a recessive trait, the presumed genotype would be Aa, where A represents the dominant allele and a represents the recessive allele. This means the cat has one dominant allele and one recessive allele for the trait in question. The test cross would involve crossing this cat with a homozygous recessive individual to determine the genotype of the cat.
How do you explain the principle of dominance?
Genetic dominance? One gene is dominant over the other gene in the chromosome pair by having it protein product made totally at the expense of the recessive gene, or the protein product dominates production. For instance, blue eye color is recessive to brown eye color. You have two alleles ( different molecular form of the same gene ) in this case; one from one parent and one from the other parent. Only the brown allele expresses and is called dominant then.
When an allele mask the presence of another allele it is said to be?
Dominent. Simple- you have two types of Alleles, Dominent and Reccessive. Imagine a punnet square for the allele that causes albinoism (A). One parent has Aa, or one dominent allele and one reccessive allele for the trait. If the dominent skin-tone gene wasn't there (A), then it would be AA and he would be an albino. But since he has a dominent allele, he has normal color. If he made a baby with another Aa combination, they would have 25% chance of having an AA baby with no reccessive allele, a 50% chance of having an identical Aa combination, and a 25% chance of having an albino baby, AA.
Which sentence correctly describes the relationship between genes and alleles?
She inherited brown eyes, a dominant allele in both her parents.
Two form of the same gene is called?
An indiviual letter in a punnett square representing a gene is called an allele. The two genes ( one from each parent ) together is a genotype. There isn't really two forms of a gene.
What does recessive tell us about gene's expression?
Recessive doesn't really describe the expression of a gene. When a gene is "expressed" a protein is made. Recessive describes what form of the gene is expressed or in other words, which allele. A recessive protein may look different and function differently than a dominant protein. This is oversimplified though because there are many different interactions and mechanisms that determine protein function.
Not expressed when the dominant form of a trait is present?
Recessive traits are not expressed when the dominant form is present. This is because the dominant allele masks the expression of the recessive allele in the heterozygous condition. Only when an individual has two copies of the recessive allele will the recessive trait be expressed.
What happened in Mendel's experiment when a pea plant received two different alleles for the same trait?
He did an experiment with a tall pea plant and a small pea plant. He then went through 2 generations of breeding of these plants and noticed 3 distinct different types of plants. One type was really short, the other was average height, and the final was Tall.He combined 2 medium sized plants with each other (Tt) and (Tt).*T = Tall gene.*t = shortness gene.Put that into you Punnett square and you will get these answers:The small plant had a recessive gene (tt).The medium sized plant had the average set of genes (Tt).The tall plant also had a recessive gene (TT).The results were:1 Small Plant, 2 Medium Plants, and 1 Large Plant.The recessive allele was hidden by the dominant alleleThe recessive allele was hidden by the dominant allele.the recessive allele was hidden by the dominant allele. (novanet)The recessive allele was hidden by the dominant allele.Novanet Swagnovanet:The recessive allele was hidden by the dominant allele!
How alleles and genes related?
Genes and alleles are related because alleles are inside a gene. Genes are made up by alleles. A gene is DNA. The allele is like piece of DNA inside a gene.
If you are diagnosed with schizo-effective disorder can your future children inherit the disorder?
The allele for schizo-effective disorder is recessive, meaning that a person must inherit two genes (one from mom, one from dad), to actually have the disorder.It also means that if you or your partner has the disorder,If one of your families has no history of the disorder, chances are good thatLet's say schizo-effective disorder is represented with S or s.(lowercase symbolizes recessive, and capital is dominant)If you are diagnosed with Schizo-effective disorder, your genotype is ss.This is also called homozygous recessive.Let's say your spouse has no family history for at least 4 or 5 generations of this disorder. It is safe to assume, then, that he/she is homozygous dominant, or SS.The only allele you can pass on to your children is the recessive allele, since you have no dominant variation, and you must pass on one allele per gene to your children. This means that no matter what, your children carry the gene for schizo-effective disorder.The only allele your partner/spouse can pass on is the dominant allele, since we have made the assumption that both of her/his inherited alleles are 'normal' (negative for schizo-effective disorder).The dominant allele cancels out the effects of the recessive allele, so none of your children can actually have the disorder, but your grandchildren might, unless your children find another homozygous dominant partner.Note: Simply because a person does not have schizo-effective disorder does not mean that they are homozygous dominant. They may also be heterozygous, (Ss) like your children. this gives a 1/4 chance that your grandchildren will have the disorder. (this is also known as a monohybrid cross).
What is heterzygous in genes?
A heterozygous dominant gene is a gene that is more dominant in the gene pool but is made up of 2 diffrent traits passed from parent example: A heterzygous gene would be Tt for tall. The T stands for domintant trait as being tall and the t stands for the recessive trait short. All heterzygous means is that it is made up with 1 captial letter and 1 lowercase letter.
