Table of Contents
- 1 What is the phenotype for dimples?
- 2 What type of variation is having dimples?
- 3 What are 5 examples of phenotype?
- 4 What is example of phenotype?
- 5 Are dimples a Mendelian trait?
- 6 What is an example of a phenotype?
- 7 What are examples of phenotype and genotype?
- 8 What is human phenotype?
- 9 How are alleles and diploids related to dimples?
- 10 Is there any evidence that dimples are inherited?
What is the phenotype for dimples?
Although Susan has both the allele “D” to make dimples and the allele “d” in her genotype, her phenotype is the presence of dimples. Thus the allele to make dimples is DOMINANT (the one that is expressed even if only copy is present) and is always represented with a capital letter….
| t | t | |
|---|---|---|
| t | tt (short) | tt (short) |
What type of variation is having dimples?
Dimples—indentations on the cheeks—tend to occur in families, and this trait is assumed to be inherited. Dimples are usually considered a dominant genetic trait, which means that one copy of the altered gene in each cell is sufficient to cause dimples.
What are 3 examples of phenotype?
Phenotype Examples
- Eye color.
- Hair color.
- Height.
- Sound of your voice.
- Certain types of disease.
- Size of a bird’s beak.
- Length of a fox’s tail.
- Color of the stripes on a cat.
What are 5 examples of phenotype?
In humans, phenotype examples include earwax type, height, blood type, eye color, freckles, and hair color. And phenotypes aren’t just physical traits. Behavior is also considered a phenotype.
What is example of phenotype?
The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. Examples of phenotypes include height, wing length, and hair color.
What chromosome is dimples found on?
It is believed that cheek dimple genes occur on the 16th chromosome, whereas cleft chin genes occur on the 5th. However, the University of Utah considers dimples an “irregular” dominant trait that is probably controlled mostly by one gene but is influenced by other genes.
Are dimples a Mendelian trait?
Cheek dimples are a Mendelian trait, following the laws of inheritance first described by Gregor Mendel in 1865. Chin dimples are also inherited.
What is an example of a phenotype?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
What are the four phenotypes?
The four phenotypic classes correspond to the genotypes: A_B_, A_bb, aaB_, and aabb. If either of the singly homozygous recessive genotypes (i.e. A_bb or aaB_) has the same phenotype as the double homozygous recessive (aabb), then a 9:3:4 phenotypic ratio will be obtained.
What are examples of phenotype and genotype?
Genotypes remain the same throughout the life of the individual. Examples of phenotypes seen in various organisms include the blood group, eye color, and hair texture as well as genetic diseases in humans, pod size and color of leaves, beak birds, etc.
What is human phenotype?
A phenotype is an individual’s observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.
Which is the dominant trait of a dimple?
Dominance and Dimples. A dimple is a dominant trait. Say John, who has two dominant dimple genes (DD), and Jane, who has two recessive dimple genes (dd), have a baby named Alice. Alice will receive one allele from each parent.
Alleles and Diploids. Chromosomes carry their genes in the same place, but these genes have different versions, called alleles. Some alleles are dominant and some are recessive. In the case of dimples, one allele can tell the body to have dimples, while another may say “no” to the genetic trait.
Is there any evidence that dimples are inherited?
However, some researchers say that there is no proof that dimples are inherited. Little research has been done to explore the genetics of dimples and it is not known which gene or genes may be involved. A dimple is an anomaly of the muscle that causes a dent in the cheek, especially when the individual smiles.
How does the body tell if you have dimples?
Chromosomes carry their genes in the same place, but these genes have different versions, called alleles. Some alleles are dominant and some are recessive. In the case of dimples, one allele can tell the body to have dimples, while another may say “no” to the genetic trait.