If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS. Phenotype is the PHYSICAL appearance of a trait, such as a YELLOW (or BLUE) body color.

Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.

Mendelian Genetics

Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white).

In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes. Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent. …

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.

A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics.

1 : the observable characteristics or traits of an organism that are produced by the interaction of the genotype and the environment : the physical expression of one or more genes Considering that modern maize is a tetraploid, it is remarkable how many single gene mutations cause profound changes in phenotype.—

Phenotype is defined as the physical and psychological characteristics of an organism from both genetics and environment, or a group of organisms having like traits. An example of phenotype is a group of organisms which are all affected in the same ways by nature and nurture. noun.

Phenotype, all the observable characteristics of an organism that result from the interaction of its genotype (total genetic inheritance) with the environment. Examples of observable characteristics include behaviour, biochemical properties, colour, shape, and size.

Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

Green

Blue eyes in humans happened because of a recessive trait mutation that basically prevents the production of melanin in the iris inside the eyes, it is not reliable for determine inbreeding. Blue eyes is a sign of lacking melanin in your eyes. No. Not because of inbreeding.

Green eyes are most common in Northern, Central, and Western Europe. About 16 percent of people with green eyes are of Celtic and Germanic ancestry. The iris contains a pigment called lipochrome and only a little melanin.

The production of melanin in the iris is what influences eye color. More melanin produces a darker coloring, while less makes for lighter eyes. Green eyes are the rarest, but there exist anecdotal reports that gray eyes are even rarer. Eye color isn’t just a superfluous part of your appearance.

The answer is – absolutely! People with green, blue or brown eyes all experience change in color from time to time. Causes for eye color changes include: The way light scatters.

Contrary to popular belief, true black eyes do not exist. Some people with a lot of melanin in their eyes might appear to have black eyes depending on the lighting conditions. This is not truly black, however, but simply a very dark brown.

With only two percent of the world’s population having green eyes, it’s definitely rare! Pretty purple eyes naturally occur because of a lack of pigment, but are very rare.

Gray eyes may be called “blue” at first glance, but they tend to have flecks of gold and brown. And they may appear to “change color” from gray to blue to green depending on clothing, lighting, and mood (which may change the size of the pupil, compressing the colors of the iris). Red eyes do exist.

Brown

Green eyes are a genetic mutation that produces low levels of melanin, but more than blue eyes. As in blue eyes, there is no green pigment. Instead, because of the lack of melanin in the iris, more light scatters out, which make the eyes appear green.

If a person wants to change their eye color temporarily, this is most often accomplished with contact lenses. There are many types available that provide different effects. For people hoping to alter their eye color permanently, iris implant surgery is available.

No matter what the actual percentages are, it is a foregone conclusion that a lot of people will find dark brown eyes less attractive than other eye colors. It is equally true, though, that a lot of people will find dark brown eyes to be the most attractive.