50%. Heterozygous means that there is two different traits inside of the gene. Therefore you have (aa) for the free earlobes and the other individual with attached (Aa). Drawing a Punnett square you get (aa) in two different spots, creating 50% probability.
The possible genotypes of gametes are determined by the genetic makeup of an individual and can include combinations of dominant and recessive alleles.
The possible genotypes of the gametes in a genetic cross involving the keyword "genotypes" are determined by the specific alleles present in the parents. These genotypes can be represented by different combinations of alleles, such as homozygous dominant (AA), homozygous recessive (aa), or heterozygous (Aa).
Yes it is your possibility if the parents were both heterozygous(having different alleles) or hybrid with Aa and Aa, the genotypic ratio would be 1:2:1 so if you put it in a punnet square there is a 25% chance of AA, 50% chance of Aa and 25% chance of aa.
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
Is tall dominant? You didn't say. Let's assume it is. Therefore, as long as a dominant allele is one of the two alleles an organism has for every trait, and we let "R" stand for dominant tall and 'r' stand for recessive short, then either an RR or Rr genotype will result in a tall phenotype.
The man could have either free hanging or attached earlobes. His possible genotypes could be either homozygous for free hanging earlobes (LL) or heterozygous for free hanging and attached earlobes (Ll).
If both parents are heterozygous for attached earlobes (genotype Ee, where E is the dominant allele for free earlobes and e is the recessive allele for attached earlobes), the possible genotypes for their child can be determined using a Punnett square. The possible combinations are EE, Ee, Ee, and ee. This means there is a 25% chance (1 out of 4) that the student will inherit the genotype ee, resulting in attached earlobes. Thus, there is a 25% likelihood that the student has attached earlobes.
The possible genotypes of gametes are determined by the genetic makeup of an individual and can include combinations of dominant and recessive alleles.
Yes, it is possible for two individuals with attached earlobes (ee genotype) to have children with free earlobes. This would depend on the specific genotypes of the parents and the inheritance pattern of the earlobe trait, which is typically considered a simple Mendelian trait. If both parents carry hidden free earlobe genes (Ee), there is a chance that their children may have free earlobes.
The possible genotypes of the gametes in a genetic cross involving the keyword "genotypes" are determined by the specific alleles present in the parents. These genotypes can be represented by different combinations of alleles, such as homozygous dominant (AA), homozygous recessive (aa), or heterozygous (Aa).
TT or Tt
Yes it is your possibility if the parents were both heterozygous(having different alleles) or hybrid with Aa and Aa, the genotypic ratio would be 1:2:1 so if you put it in a punnet square there is a 25% chance of AA, 50% chance of Aa and 25% chance of aa.
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.)
Either TT or Tt, where T stands for dominant gene for tallness and t for recessive gene.
The Punnett square is a table used to predict the possible genotypes of offspring in a genetic cross between two parents. It is commonly used to determine dominant and recessive genes in offspring based on the genotypes of the parents.
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
Is tall dominant? You didn't say. Let's assume it is. Therefore, as long as a dominant allele is one of the two alleles an organism has for every trait, and we let "R" stand for dominant tall and 'r' stand for recessive short, then either an RR or Rr genotype will result in a tall phenotype.