What are some examples of Dominant?

Answer 1

Examples of dominant traits are listed below.

First, I've included several definitions to put the answer in context:

"Dominant traits" are referenced in the study of genetics, which is a branch of Biology that deals with the heredity and variation of organisms.

In biology, the basic unit of which all living things are composed is called a cell.

A chromosome is the microscopic, threadlike part of a cell that carries hereditary information.

A gene is a unit of heredity that occupies a fixed position (locus) on a chromosome.

A genetic trait is a physical characteristic brought about by the expression of a gene or many genes.

Examples of traits are eye colour and the ability to roll your tounge.

Variations in these characteristics are dependent upon the particular alleles (any one of the alternative forms of a given gene that code for slightly different versions of the same trait).

Genotype describes the genetic constitution of an individual, i.e. the specific list of alleles.

Phenotype describes the total physical appearance of an organism.

The genotype/phenotype distinction was proposed by Wilhelm Johannsen in 1911 to make clear the difference beween an organism's heredity and what that heredity produces. The genotype is observed by looking at DNA, the phenotype observed through the outward appearance of the organism. Some genes only express a given phenotype in certain environmental conditions; some phenotypes could be the result of a certain combination of genotypes.

When a pair of alleles (one half of each pair comes from each parent) is the same, they are called "homozygous"; when a pair of alleles are not the same, they are called "heterozygous."

A "dominance relationship" refers to how the alles for a locus interact to produce a phenotype. In other words, when an organism has a heterozygous allele pair, the trait that is expressed in the phenotype is "dominant."

A simple example is the flower colour in pea plants (see Gregor Mendel). There are three available genotypes, PP (homozygous dominant), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white). This means that when this pair of alleles are different types (one allele for white and one for purple), the pea plant will be purple -- purple is the dominant trait.

Here are some common dominant traits in humans:

TYPE DOMINANT RECESSIVE

eye coloring brown eyes grey, green, hazel, blue eyes

vision farsightedness Normal vision

normal vision nearsightedness;

night blindness

color blindness

hair dark hair blonde, light, red hair

non-red hair red hair

curly hair straight hair

widow's peak normal hairline

full head of hair baldness*

facial features dimples no dimples

unattached earlobes attached earlobes

freckles no freckles

broad lips thin lips

appendages extra digits normal number

fused digits normal digits

short digits normal digits

fingers lack 1 joint normal joints

limb dwarfing normal proportion

clubbed thumb normal thumb

double-jointedness normal joints

other immunity to poison ivy susceptibility to poison ivy

normal pigmented skin albinism

normal blood clotting hemophilia*

normal hearing congenital deafness

normal- no PKU phenylketonuria (PKU)

normal hearing and speaking deaf mutism

http://www.blinn.edu/socialscience/LDThomas/Feldman/Handouts/0203hand.htm

Examples of dominant traits Examples of dominant traits are listed below. First, I've included several definitions to put the answer in context: "Dominant traits" are referenced in the study of genetics, which is a branch of biology that deals with the heredity and variation of organisms. In biology, the basic unit of which all living things are composed is called a cell. A chromosome is the microscopic, threadlike part of a cell that carries hereditary information. A gene is a unit of heredity that occupies a fixed position (locus) on a chromosome. A genetic trait is a physical characteristic brought about by the expression of a gene or many genes. Examples of traits are eye colour and the ability to roll your tounge. Variations in these characteristics are dependent upon the particular alleles (any one of the alternative forms of a given gene that code for slightly different versions of the same trait). Genotype describes the genetic constitution of an individual, i.e. the specific list of alleles. Phenotype describes the total physical appearance of an organism. The genotype/phenotype distinction was proposed by Wilhelm Johannsen in 1911 to make clear the difference beween an organism's heredity and what that heredity produces. The genotype is observed by looking at DNA, the phenotype observed through the outward appearance of the organism. Some genes only express a given phenotype in certain environmental conditions; some phenotypes could be the result of a certain combination of genotypes. When a pair of alleles (one half of each pair comes from each parent) is the same, they are called "homozygous"; when a pair of alleles are not the same, they are called "heterozygous." A "dominance relationship" refers to how the alles for a locus interact to produce a phenotype. In other words, when an organism has a heterozygous allele pair, the trait that is expressed in the phenotype is "dominant." A simple example is the flower colour in pea plants (see Gregor Mendel). There are three available genotypes, PP (homozygous dominant), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white). This means that when this pair of alleles are different types (one allele for white and one for purple), the pea plant will be purple -- purple is the dominant trait. Here are some common dominant traits in humans: TYPE DOMINANT RECESSIVE eye coloring brown eyes grey, green, hazel, blue eyes vision farsightedness Normal vision normal vision nearsightedness; night blindness color blindness hair dark hair blonde, light, red hair non-red hair red hair curly hair straight hair widow's peak normal hairline full head of hair baldness* facial features dimples no dimples unattached earlobes attached earlobes freckles no freckles broad lips thin lips appendages extra digits normal number fused digits normal digits short digits normal digits fingers lack 1 joint normal joints limb dwarfing normal proportion clubbed thumb normal thumb double-jointedness normal joints other immunity to poison ivy susceptibility to poison ivy normal pigmented skin albinism normal blood clotting hemophilia* normal hearing congenital deafness normal- no PKU phenylketonuria (PKU) normal hearing and speaking deaf mutism http://www.blinn.edu/socialscience/LDThomas/Feldman/Handouts/0203hand.htm

Answer 2

Question - What Causes some genes to be ressesive and other genes to be dominant?

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Think about the fact that genes code for directions for making proteins.

There are many different kinds of proteins in our body-enzymes for regulating

metabolism, structural proteins for building our bodies, hormones for

regulating processes etc. If the gene for the protein is structural, then it

is important to have the right kind and the right amount. If the gene is

defective (usually recessive genes are defective, but not always) the right

protein will not be made and the structure will either be defective and won't

work at all or there won't be enough to maintain the structure. Sometimes

you need both genes to be working to get enough of the structure. So a

homozygous person will have the strongest structure. A heterozygote would

have one gene that is working a may produce enough of the protein to maintain

the structure, but maybe not. So in some cases, just having one copy of the

dominant (working) gene is enough. If it is a trait for something like eye

color, this is not going to cause a defect, just a difference. In this case,

being heterozygous or homozgyous for the dominant trait produces the same

color of eye. In the case of sickle cell anemia, the recessive gene changes

the protein structure of the shape of the red blood cell. If you have one

good copy and one bad copy of the gene, some of your cells will be normal and

some will be sickle cells. One good copy of the gene gives you enough normal

red blood cells to stay healthy. But if you don't have a normal copy, all

of your cells have the capability to sickle under certain conditions and this

can be fatal. So think of dominant and recessive genes in terms of what they

produce and what that protein is supposed to do and then think of what would

happen if the dominant gene was able to overtake the effect of the recessive

gene.

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Answer 3

well i have no idea so dont ask me persons ok i love ya

Answer 4

wolves, baboons, chickensmost social animals with groups because one specific animal or group of animals is/are leaders and the others are subserviant