What has genes that are different for a trait?
In other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous (“hetero” meaning “different”) for that allele. Alleles produce phenotypes (or physical versions of a trait) that are either dominant or recessive.
What has genes that are different for a trait like TT?
A HY B R L D has genes that are different for a trait, such as Tt.
What does the genotype for a trait TT represent?
If an organism has two different alleles (Tt) for a certain gene, it is known as heterozygous (hetero means different)….Genotype and Phenotype.
| Genotype | Definition | Example |
|---|---|---|
| Heterozygous | One dominant allele and one recessive allele | Tt |
| Homozygous dominant | Two dominant alleles | TT |
What is it called when genes for two different traits travel together?
Genes that are sufficiently close together on a chromosome will tend to “stick together,” and the versions (alleles) of those genes that are together on a chromosome will tend to be inherited as a pair more often than not. This phenomenon is called genetic linkage.
What are different forms of a gene called?
“Allele” is the word that we use to describe the alternative form or versions of a gene.
What genetics is TT?
The notation Tt means the heterozygous condition, wherein the homologous pair contains different alleles of a gene. One homologous chromosome possesses the dominant allele and the other chromosome possesses the recessive allele present for a gene. Alleles are slightly different forms of one gene.
What has 2 different alleles for a trait?
Heterozygous: Having two different alleles for a trait.
What does TT Mean genes?
heterozygous condition
The notation Tt means the heterozygous condition, wherein the homologous pair contains different alleles of a gene. One homologous chromosome possesses the dominant allele and the other chromosome possesses the recessive allele present for a gene. Alleles are slightly different forms of one gene.
What is a variation of a gene called?
Additionally, genes can exist in slightly different forms, called alleles, which further adds to genetic variation. The combination of alleles of a gene that an individual receives from both parents determines what biologists call the genotype for a particular trait, such as hair texture.
What is having two different alleles for a trait?
Is a phenotype a trait?
​Phenotype Phenotype refers to an individual’s observable traits, such as height, eye color and blood type. A person’s phenotype is determined by both their genomic makeup (genotype) and environmental factors.
When alleles of a gene pair are different?
If the two alleles are the same, the individual is homozygous for that allele. If the alleles are different, the individual is heterozygous.
What type of gene is BB?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb.
What is the phenotype of GG?
The GG, Gg, and gg above are known as genotypes. They denote the specific genes for that trait. The colors, yellow and green, are known as the phenotype, or the physical appearance of that genotype.
What genotype is ab?
Genotypes
| Blood Type | Genotype |
|---|---|
| Blood Type A | Genotypes AA or AO |
| Blood Type B | Genotypes BB or BO |
| Blood Type AB | Genotype AB |
| Blood Type O | Genotype OO |