True breeding tall plants would be TT and true breeding short plants would be tt, so TT x tt would illustrate the crossbreeding.
True breeding tall plants would be TT and true breeding short plants would be tt, so TT x tt would illustrate the crossbreeding.
In a Punnett square, a capital letter represents a dominant allele.
punnett
recessive
capital letter
Any letters can be used, but typically "T" is used for tall and "t" is for short. Letters are usually chosen by using the first letter of the characteristic being described, and the upper case represents the trait being dominant. Lower case represents the trait being recessive.
a pair of recessive genes
Any letters can be used, but typically "T" is used for tall and "t" is for short. Letters are usually chosen by using the first letter of the characteristic being described, and the upper case represents the trait being dominant. Lower case represents the trait being recessive.
Any letters can be used, but typically "T" is used for tall and "t" is for short. Letters are usually chosen by using the first letter of the characteristic being described, and the upper case represents the trait being dominant. Lower case represents the trait being recessive.
Any letters can be used, but typically "T" is used for tall and "t" is for short. Letters are usually chosen by using the first letter of the characteristic being described, and the upper case represents the trait being dominant. Lower case represents the trait being recessive.
Generally speaking, the letters used to represent cross breeding in Punnett squares indicate the characteristic being bred for. In this case, T would represent the tall plants, and S would represent the short plants. Cross-bred plants would most likely be represented by TS.
If the letter "a" replaces the question marks in a Punnett square, it indicates that the organism is homozygous for that trait. This means both alleles in the genotype are the same, either "AA" or "aa." A homozygous condition can lead to consistent expression of a trait in offspring, depending on whether the alleles are dominant or recessive.