Two alleles for tall stems.
Two alleles for short stems
False. Pea plants can have short stems if they have two recessive alleles for short stems, but they can also have short stems if they have a combination of dominant and recessive alleles that result in a short stature.
Purebred tall plants can be crossed with purebred short plants to produce hybrid offspring with intermediate heights. This type of cross is an example of an incomplete dominance inheritance pattern where the traits from both parent plants are partially expressed in the offspring.
All the offspring were tall plants. This is because the tall trait is dominant over the short trait in Mendel's experiments on pea plants.
No, not all tall pea plants are purebred for tallness. In Mendel's experiments with pea plants, tallness is a dominant trait, but if a tall plant is heterozygous (having one allele for tallness and one for shortness), it can produce offspring that are either tall or short. Only plants that are homozygous for the tall trait (having two alleles for tallness) will consistently produce tall offspring. Thus, genetic testing or breeding records are needed to determine if a tall pea plant is purebred.
I think not as tall is the dominant allele here.T = tallt = shortTT X ttall would beTt======and tall.
he got tall pea plants that were heterozygotes
Most teachers will designate the dominant gene capital letter. In Mendel's experiment he crossed purebred Tall (T) with purebred short (t). He got all Tall plants as a result. Tall purebreed genotype is TT and the resulting generation was all tall by heterozygous with a genotype of Tt.
A purebred short can be about a variety of different animals. Usually purebred shorts describe dogs or cats and their breeds.
When Mendel crossed purebred tall tea plants with purebred short tea plants, all the offspring in the first generation (F1) exhibited the tall phenotype. This outcome demonstrated the concept of dominance, where the tall trait masked the short trait. When Mendel allowed these F1 plants to self-pollinate, the second generation (F2) revealed a 3:1 ratio of tall to short plants, indicating that the short trait was still present as a recessive trait. This experiment laid the foundation for Mendel's laws of inheritance.
Yes, in pea plants the tall-stem and short-stem alleles are different forms of the same gene that controls stem length. These different forms, or alleles, result in the observable variations in stem height seen in pea plants.
Gregor Mendel discovered that when he crossed a tall plant with a short plant, all the resulting offspring were tall. This indicated that the trait for tallness was dominant over the trait for shortness.