Genotype, phenotype?

Question

What is genotype?
What is Phenotype?

Answer 1

Genotype---your genetic makeup (hence, genes)... its the DNA strands in your blood that give you certain characteristic.

phenotype--how you look on the outside. if you have blonde hair, blue eyes, tall, etc. these aspects of your phenotypes, meaning genes in your body make you have blonde hair, blue eyes, etc.

Answer 2

phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). To consider these in the context of evolutionary biology, we want to know how these two are related. In a narrow "genetic" sense, the genotype defines the phenotype. But how, in and evolutionary sense, does the phenotype "determine" the genotype? Selection acts on phenotypes because differential reproduction and survivorship depend on phenotype. If the phenotype affecting reproduction or survivorship is genetically based, then selection can winnow out genotypes indirectly by winnowing out phenotypes.


How do we get from genotype to phenotype? Central dogma: DNA via transcription to RNA via translation to protein; proteins can act to alter the patterns and timing of gene expression which can lead to cytodifferentiation where cells take on different states; cell communication can lead to pattern formation and morphogenesis and eventually we have an adult!


Genotype is also used to refer to the pair of alleles present at a single locus. With alleles 'A' and 'a' there are three possible genotypes AA, Aa and aa. With three alleles 1, 2, 3 there are six possible genotypes: 11, 12, 13, 22, 23, 33. First we must appreciate that genes do not act in isolation. The genome in which a genotype is found can affect the expression of that genotype, and the environment can affect the phenotype.

Answer 3

Genotype - all the genes an individe has.
Phenotype - how the genes affect outside appearance.
So what you see it phenotype and what's inside nucleus is genotype.

Answer 4

In layman's terms, genotype is the genetic makeup and phenotype is the physical attributes.

Here:
http://plato.stanford.edu/entries/genotype-phenotype/

Answer 5

Genotype is the gene sequence
Phenotype is the outside look of the plant or whatever!

Answer 6

Genotype is the actual makeup of the gene... for example a double heterozygous gene would be hh.

Phenotype is the trait of the gene. Such as blue eyes.

Answer 7

http://plato.stanford.edu/entries/genotype-phenotype/