What genotype is needed for a recessive phenotype to be passed on?
Only individuals with an aa genotype will express a recessive trait; therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait.
What are the genotypes of the parent pea plants?
| Parent Pea Plants (“P” Generation) | Offspring (“F1” Generation) | |
|---|---|---|
| Genotypes: Tt x tt | Phenotypes: tall x short | Genotypes: 50% (2/4) Tt 50% (2/4) tt |
Which genotypes will make a pea plant?
| Parent Pea Plants (P Generation) | Offspring (F1 Generation) | |
|---|---|---|
| Genotypes: TT x tt | Phenotypes: tall x short | Genotypes: 100% Tt |
What would the genotype be for a green pea seed?
aa
The green pea phenotype has a genotype of aa.
What is the difference between genotype and phenotype?
The sum of an organism’s observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism’s parents, the phenotype is not. Whilst a phenotype is influenced the genotype, genotype does not equal phenotype.
Which allele is always written first?
When expressing dominant and recessive alleles, the dominant allele is always written as a capitalized letter, and the recessive allele as the same letter, but lower case.
What is a phenotype give an example?
The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. Examples of phenotypes include height, wing length, and hair color.
Which Colour of pea seed is dominant?
Yellow Green
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| Trait | Dominant Expression | Recessive Expression |
|---|---|---|
| Color of seed albumen (Y) | Yellow | Green |
| Color of flower (P) | Purple | White |
| Form of ripe pods (I) | Inflated | Constricted |
| Color of unripe pods (G) | Green | Yellow |