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The genotypes TT and Tt represent different combinations of alleles for a particular gene. TT is homozygous dominant, meaning it has two identical dominant alleles, while Tt is heterozygous, containing one dominant allele (T) and one recessive allele (t). This difference can affect the expression of traits, with TT typically exhibiting the dominant phenotype and Tt also showing the dominant phenotype, but potentially carrying the recessive trait.
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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.)
If Parent 1 Tt crosses with Parent 2 tt what percentage will display the recessive trait?
In a cross between Parent 1 (Tt) and Parent 2 (tt), the possible genotypes of the offspring are Tt and tt. The Tt offspring will be heterozygous and display the dominant trait, while the tt offspring will be homozygous recessive and display the recessive trait. There is a 50% chance (2 out of 4 possibilities) that the offspring will be tt and show the recessive trait. Therefore, 50% of the offspring will display the recessive trait.
Is genotypes TT or ff a purebred?
Yes, a genotype of TT or ff indicates a purebred individual for a specific trait. TT signifies homozygous dominant, while ff signifies homozygous recessive.
What are three types of genotypes that exist for pea plant height?
Three types of genotypes that exist for pea plant height are: TT - Homozygous dominant genotype for tall height Tt - Heterozygous genotype for tall height tt - Homozygous recessive genotype for short height
In pea plants the gene for tallness (T) is dominant over the gene for shortness (t). A homozygous dominant pea plant is crossed with a heterozygous pea plant and 200 seeds are produced. Approximately?
When a homozygous dominant pea plant (TT) is crossed with a heterozygous pea plant (Tt), the possible genotypes of the offspring are TT and Tt. This results in a 1:1 ratio of tall (TT and Tt) to short (tt) plants. Therefore, out of 200 seeds produced, approximately 200 seeds will be tall plants (100 TT and 100 Tt) and 0 seeds will be short (tt).
What combination will complete the punnett square T T TT Tt?
The combination that will complete the Punnett square for this example is Tt. This would be the offspring resulting from a cross between the parent genotypes TT and Tt.
A recessive allele t is responsible for a condition called distonia a man who has this condition marries a woman who doesnt one of their four children has the conditon what are the pssible genotypes?
Firstly, if the condition is recessive, both the man and the child with the condition must have the genotype tt. The mother must have the genotype Tt. This is because if she had TT, all of the children would be Tt and not have the condition. If she were tt, she would have the condition as well. Therefore if the father has tt and the mother has Tt, the other 3 children who do not have the condition must all have the genotype Tt. So: Mother - Tt Father - tt Affected child - tt Other children - Tt
What are the genotypes of the short plants in the P1 and F2 generation?
P1: tt F2: tt
You are looking at four tall pea plants What are their phenotypes and genotypes?
The tall pea plants have the phenotype of tall height. Their genotypes can vary depending on whether they are homozygous dominant (TT) or heterozygous (Tt) for the tall trait.
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.)
In pea plants the allele for a tallness is dominant what are the possible genotypes of a tall pea plant?
TT or Tt
What is the phenotypic ratio for Genotype TT Tt Tt tt?
3 : 1 ( since the given situation of segregating genotypes TT Tt Tt tt comes under monohybrid genetic combination, it will show 3 tall plants and 1 dwarf plant because gene T is dominant over t.
What is the difference between buying TT and buying OD?
TT is telegraph transfer and OD is on demand.
What is the difference between TT and TC in railway?
TT is a ticket taker and TC is a ticket chaker
What is TT Tt tt?
These are letters assigned to alleles or variations in genes. TT means that there are two dominate alleles. Tt means that there is one dominate and one recessive and tt means that both are recessive.
What must be the genotypes of the parent plant?
both must be tt
What must be the genotypes of the parent plants?
both must be tt
