Genotypes for plant height are TT, Tt, tt . Genotypes can be heterozygous or homozygous. Phenotypes for plant height are tall or short. TT and Tt genotypes both expressed the tall phenotype because the T is dominant to t.
What is the phenotype for a tall plant?
Since the only allele possible is dominant, the plant will express the dominant phenotype , which is red leaf color. The genotype for height of the stems is Tt , which is heterozygous, containing a dominant and recessive allele. Since the allele for tall height is dominant, the tall stems phenotype will be expressed.
What is the genotype of tall?
| Genotype Symbol Genotype Vocab Phenotype | TT homozygous DOMINANT or pure tall tall | Tt heterozygous or hybrid tall | tt homozygous RECESSIVE or pure short short |
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What is the genotype of a tall pea plant?
| Genotype Definition Example | Homozygous Two of the same allele TT or tt | Heterozygous One dominant allele and one recessive allele Tt |
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What was the genotype for the tall plants in the F2 generation?
F2 tall red plants will have 4 genotypes, i.e. homozygous tall homozygous red (TTRR) , homozygous tall heterozygous red (TTRr), heterozygous tall and homozygous red (TtRR), and heterozygous tall and heterozygous red (TtRr) will be in the ratio of 1:2:2:4.
Does the tall offspring plant look like the tall parent plant explain?
Yes. The tall allele is dominant . The offspring plant has a different genotype than the tall parent plant even though they look alike.
What are Mendel’s three laws?
Answer: Mendel proposed the law of inheritance of traits from the first generation to the next generation. Law of inheritance is made up of three laws: Law of segregation, law of independent assortment and law of dominance .
What’s the difference between something’s genotype and phenotype?
Genotype versus phenotype. An organism’s genotype is the set of genes that it carries. An organism’s phenotype is all of its observable characteristics — which are influenced both by its genotype and by the environment. ... For example, differences in the genotypes can produce different phenotypes .
Is being tall a phenotype?
A phenotype is an individual’s observable traits , such as height, eye color, and blood type.
Is FF homozygous or heterozygous?
| Genotype Phenotype | F F Homozygous dominant No cystic fibrosis (Normal) | F f Heterozygous Carrier (has no symptoms but carries the recessive allele) | f f Homozygous recessive Cystic fibrosis (has symptoms) |
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What could be possible genotype of parents if their offspring are 50 Dwarf and 50 tall?
This cross can be shown by a cross for the tall (dominant) or dwarf (recessive) feature of pea plant as shown. Thus, if the result is all tall plants then the genotype of the parent will be homozygous dominant (TT) and if the result is 50% tall and 50% dwarf then the parent will be heterozygous dominant (Tt) .
How will you find out whether a given plant is H * * * * * * * * * or heterozygous?
This cross involves a cross between an organism with an unknown genotype and an organism that is homozygous recessive for that trait. T est cross helps to determine whether the individual being tested is homozygous dominant (purebred) or heterozygous dominant (hybrid).
How can you determine the genotype of a tall pea plant?
Explanation: A test cross is performed on a tall pea plant to determine its genotype. There are two possibilities, i.e. it can be either homozygous tall (TT) or heterozygous tall (Tt). In a test cross, tall pea plant of unknown genotype is crossed with dwarf pea plant.
What percentage of the offspring in an F2 cross will be tall?
The F2 plants, produced by a cross of heterozygous parents, result in 3/4 of the offspring having the dominant phenotype, tall stems.
How do you create an F2 cross?
For the F2 generation, we cross-breed two of the heterozygous siblings . Distribute heterozygous alleles along the top and side axes of your Punnett square and then, like before, distribute one allele from each parent to each offspring.
Why do TT and TT genotypes have the same phenotype?
Tallness is the recessive trait for plant height ; therefore, the genotypes with Tt and TT would have the same phenotype. ... Tallness is a recessive trait in pea plants. C. Tallness is the dominant trait for plant height; therefore, the genotypes with Tt and TT would have the same phenotype.
