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How do you determine phenotype?
The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
How is eye color an example of a phenotype?
Eye color phenotypes demonstrate both epistasis and incomplete dominance. Some individuals may express two phenotypes–one in each eye–or a complete lack of pigmentation, ocular albinism. In addition, the evolutionary and population roles of the different expressions are significant.
What is the phenotype of SS?
Specifically, heterozygous (Ss) individuals express both normal and sickle hemoglobin, so they have a mixture of normal and sickle red blood cells. In most situations, individuals who are heterozygous for sickle-cell anemia are phenotypically normal. Under these circumstances, sickle-cell disease is a recessive trait.
What is SpongeBob’s wife genotype?
As we know, SpongeBob is heterozygous for his yellow body color and his squarepants, while his wife SpongeSusie is blue and has roundpants.
What is a simple definition of 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.
What is difference between genotype and phenotype?
Genotype versus phenotype. An organism’s genotype is the set of genes that it carries. An organism’s phenotype is all of its observable characteristics — which are influenced both by its genotype and by the environment. For example, differences in the genotypes can produce different phenotypes.
Are blue eyes a phenotype?
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.
Which genotype is purebred?
Answer Key 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.
How many different phenotypes are possible?
Figure 13: The possible genotypes for each of the four phenotypes. Even though only four different phenotypes are possible from this cross, nine different genotypes are possible, as shown in Figure 13.
What is the best definition for phenotype?
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.
Where do blue eyes originated?
Blue eyes originated as a mutation around 6,000 to 10,000 years ago, somewhere around the Black Sea. The people carrying this mutation spread around the area, including into Sumer. The Sumerian culture rose around that time (5,000 BC) from Northern Mesopotamia (they are not a Semitic people).
What is the dominant gene eye color?
Each human has two genes for eye color – one Brown/Blue and one Green/Hazel. Brown is dominant over all other alleles.
What eye color is recessive?
What Determines Eye Color? Homozygous And Heterozygous Human beings have two copies of every gene. Dominant Eye Color Brown and green are dominant eye colors. Recessive Eye Color Blue is a recessive eye color. Genotype The genotype is the gene combination for a given trait, which, in this case, is the eye color.