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When both dominant and recessive alleles are present within a single nucleus the organism is for the trait?
You are supposed to have 2 alleles in a single nucleus and if not there can be a disorder i believe.
What does a heterozygous organism have?
It depends on the context. The only way to demonstrate practically that an organism is homozygous for a particular trait is to cross it (breed it) with another showing the recessive phenotype for that trait. When enough ofspring have been produced to be statistally significant then the conclusion can be drawn. It may also be possible to deduce whether an organism is homozygous by knowing the genotypes of the parents. Also, if you already know which phenotype is dominant then an organism showing the recessive phenotype is, by definition, homozygous. Of course, this all only applies to single gene inheritance!
A single gene trait that has two alleles and that shows a simple dominant recessive pattern will result in?
A 3:1 phenotypic ratio (Mendelian inheritance).
Scientist have found fossils of the same organism on different continents what does this suggest?
The discovery of fossils of the same organism on different continents suggests that these landmasses were once connected as part of a single supercontinent. This supports the theory of plate tectonics, which explains the movement of Earth's lithosphere. The distribution of these fossils provides evidence for the movement of species across land bridges or through continental drift over millions of years.
What are some single celled organisms?
Single celled is when an organism only has one cell, such as a paramecium. Single-celled is the same as unicellular. There is two kinds of cells: unicellular (single-celled) and multicellular ( has many cells).
Organism that has two diffrent alleles for a single trait?
An organism that has two different alleles for a single trait is called heterozygous. This means that the organism inherited different versions of the gene responsible for that trait from each parent.
When a organism has two different alleles coding for a single trait it is?
heterozygous. This means the organism has inherited two different versions of a gene that code for the same trait. One allele may be dominant and the other recessive, influencing the organism's phenotype.
Is A heterozygous pair of alleles is identical?
When there are heterozygous alleles for a gene thy code for a different expression of the gene. For example, the gene to taste PTC paper is a single gene trait. A person will have two copies (or alleles) for that gene (one from their mothers DNA, one from their father). There are two possible expressions for this gene - either you can taste the chemical or you cannot. When one allele is for tasting, and the other for not tasting, this is known as heterozygous. Both alleles are relating to the same gene but they giving different instructions and are thus not identical. When this happens, the dominant gene wins - in this case tasting is expressed. If the alleles are identical, they are known as homozygous and they are identical.
What are both inherited alleles called?
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.
What do geneticists call alleles that are both expressed in the phenotype when they are together?
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.
What is another name for heterozygous?
Another way to express something is heterozygous is to say it has dual alleles. There is a dominant and recessive allele. Alleles determine which traits something will have. Normally this is expressed in a single allele.
Which genotype shows an organism heterozygous for a single genes?
Aa
What are dominant alleles?
Dominant alleles are genetic variants that are expressed when present in a single copy in an individual's genotype, masking the expression of a recessive allele. In a heterozygous individual (having two different alleles for a gene), the dominant allele will determine the phenotype. Dominant alleles are represented by a capital letter in genetic notation (e.g., A).
What are the dominate alleles?
Dominant allele disorders are single gene disorders which take effect in the heterozygous state.
If you are talking to a 14 year old kid and they ask you what heterozygous means what do you say?
well what you should tell the kid depends on what the kid already knows but if he/she will understand tell him/her that heterozygous is "Having two different alleles for a single trait."
What are the differences in band patterns observed in gel electrophoresis between homozygous and heterozygous individuals?
In gel electrophoresis, homozygous individuals show a single band pattern, indicating that they have two identical alleles for a particular gene. Heterozygous individuals, on the other hand, show two band patterns, indicating that they have two different alleles for the gene.
When both dominant and recessive alleles are present within a single nucleus the organism is for the trait?
You are supposed to have 2 alleles in a single nucleus and if not there can be a disorder i believe.
