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Either analyzing the DNA sequence (which you probably don't have a lab to do it in) or breeding the organism and use a PUNNET SQUARE to determine if they are purebred. (don't try the breeding experiment on humans.)
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe phenotype is what the genes make the characteristics look like.
For example, if EE is for large eyes, and ee is for small eyes, you can determine the phenotypes from these. If the genotype is EE or Ee, the person has large eyes. If the person is ee, then he or she has small eyes.
Normally, you would be given this kind of information to determine the phenotypes of a given genotype, since capital and lower letters can stand for any trait that the person wants.
Wiki User
∙ 8y agoYou really can't unless what you see (phenotype) is known to be recessive. Like blue eyes, red or blonde hair in humans. Or blood type in humans. You would know that the person (or thing) has two recessive genes.
Wiki User
∙ 13y agoUsing a test cross.
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What will determine the genotype of an organism?
The alleles that are passed from parents to offspring
When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
What are the characteristics of phenotype?
A phenotype is the physical characteristics of an organism. It is determined by the genotype, so the characteristics are endless. You have to specifically know the genotype or the physical features to determine the phenotype
If you have a plant with yellow seeds which express a dominant phenotype. How would you determine the plant's genotype?
Identify the genotype trait of the seed color is yellow or green?
How can you determine the genotype plant that displays the dominant form of a trait?
Do a testcross with a homozygous recessive plant.
What will determine the genotype of an organism?
The alleles that are passed from parents to offspring
Does phenotype determine genotype?
It is a false statement that "phenotype determines genotype". In fact, it is the opposite. A genotype is the genetics or "instructions" that determine the phenotype. The phenotype is the actual appearance, ex: blue eyes, that is created by a given genotype.
Can you accurately determine an organisms genotype by observing it's phenotype?
No, genotype actually determines phenotype.
What is the important of test cross?
to determine the unknown genotype.
The mating of an individual of unknown genotype with one that is homozygous recessive in order to determine the unknown genotype is a?
Test Cross.
When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
Is phenotype determine genotype false?
Yes, this is false. It's genotype that determines phenotype. e.g. If you have the dominant gene for brown eyes and the recessive gene for blue eyes (genotype) you will have brown eyes (phenotype)
How could you determine the plant's genotype with respect to height?
Make a punnett square
What could you do to determine the genotypes of two gray bodies flies?
You could cross breed them and depending on what their offspring is, you can determine what their genotype is.
What are the characteristics of phenotype?
A phenotype is the physical characteristics of an organism. It is determined by the genotype, so the characteristics are endless. You have to specifically know the genotype or the physical features to determine the phenotype
Why is it sometimes impossible to determine the genotype of an organism that has a dominant phenotype?
it is impossible because the phenotype and genotype are different this is out of chapter 10 in the biology book on page 336
In cattle black coat is dominant to white coat color a farmer has a black male of undetermined genotype how can the farmer determine the genotype of the male?
One way to determine the male's genotype would be to breed him to females with a known genotype of Black-Black. If any resultant calves were born with a white coat, you would then know that the male were Black-White. If calves were consistently black coated, you could be fairly certain he was also of the Black-Black genotype.
