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Why isn't it possible to have more genotypes than phenotypes?
I think you have the question backwards, "Why isn't it possible to have more phenotypes than genotypes?" There are always more or an equal number of genotypes relative to phenotypes. The phenotype for a simple dominant/recessive interaction (for example) T for tall and t for short where TT is tall, Tt is tall and tt is short has three genotypes and two phenotypes. If T and t are co-dominant then TT would be tall, Tt would be intermediate and tt would be short. (Three phenotypes and three genotypes.)
What two genotypes are possible for a dog that has black fur?
No. They might have the same phenotype, but would not have the same genotype.
Can two horses have the same phenotype but different genotypes?
yes.
Why does natural selection only work on phenotypes?
Natural selection is based on the environment and on the traits of organisms. Organisms with more suitable traits are more likely to survive until reproductive age, while organisms with less suitable traits are more likely to die before they can reproduce. Most of these traits are genetic traits. The phenotype is the set of all genetic traits. Natural selection is not determined by genotypes, because genotypes are merely an organism's genetic makeup. Only the dominant or somewhat dominant alleles in the genotype will also appear in the phenotype. However, genotypes still contribute to natural selection indirectly in that two alleles in two parents' genotypes which had not appeared in their phenotypes could be inherited such that they are in the phenotype of the offspring.
What is the probability that two people with genotype LlRr have five children and 3 of them are dominant for the two genes L R?
With a dihybrid cross, there are 9 possible genotypes and 4 possible phenotypes. The ratio of phenotypes expected is 9 LR : 3 Lr : 3 lR : 1 lr. The probability of a homozygous dominant for both traits is 1/16 or 6%. The probability of having a dominant phenotype for both traits is 9/16 or 56%. 9/16 is roughly equal to 3/5 - so this is the expected ratio.
How can two plants have different genotypes having the same phenotype?
The simplest way that two plants can have different genotypes, but the same phenotype, is if they both have a dominant allele for the same trait. For example, the genotypes Pp and PP, will both produce the phenotype created by P (for example, pink coloured petals). This is because P is dominant to p, and will always be expressed. Other ways that the same phenotype can be created from different genotypes are when the environment affects the traits, or when the trait is controlled by more than one gene.
What two type genotypes are possible for a person who as A blood?
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
Two organisms each with genotypes TtGg mate?
They produce TTGG, TTGg, TTgg, ttGG, ttGg, ttgg, TtGG, TtGg, Ttgg offspring. Phenotype ratios will be: 9 dominant phenotype for both traits 3 dominant phenotype for T and recessive phenotype for g. 3 dominant phenotype for G and recessive phenotype for t. 1 recessive phenotype/genotype for both traits.
Can two organisms have different genotypes but the same phenotype?
One way is if an allele for the gene in question is dominant. Homozygotes for the dominant allele and heterozygotes will both have the same phenotype.Organisms have the same phenotype, or physical characteristics. They do not, however, have the same genotype, or genetic makeup. If T represent tall, and t represnts short then the organism will have the genotypes TT and Tt. If you make a Punnett square you will have the same phenotype but different genotypes. Unless some weird mutation occurs....
How is it possible for two individuals to have the same phenotype but different genotypes for a traits?
it is possible beccause you dont always need both
How is it possible for two individuals to have same phenotype but different genotypes for a trait?
it is possible beccause you dont always need both
Why isn't it possible to have more genotypes than phenotypes?
I think you have the question backwards, "Why isn't it possible to have more phenotypes than genotypes?" There are always more or an equal number of genotypes relative to phenotypes. The phenotype for a simple dominant/recessive interaction (for example) T for tall and t for short where TT is tall, Tt is tall and tt is short has three genotypes and two phenotypes. If T and t are co-dominant then TT would be tall, Tt would be intermediate and tt would be short. (Three phenotypes and three genotypes.)
What two genotypes are possible for a dog that has black fur?
No. They might have the same phenotype, but would not have the same genotype.
Two organisms each with the genotypes Tt Gg mate The chance of producing an offspring that has the dominant phenotype for height T and the recessive phenotype for color g is?
If two organisms, each with genotypes tt+gg mate. What is the chance of producing and offspring that has the dominant phenotype for height (t) and the recessive phenotype for color (g)
How is it possible for two individuals to have the same phenotype but a different genotypes for a trait?
it is possible beccause you dont always need both
Can two horses have the same phenotype but different genotypes?
yes.
Mendel used what term to describe heterozygous pea plants?
He used the term hybrid.
