What are the genotype and phenotype?
The genotype refers to the genetic material passed between generations, and the phenotype is observable characteristics or traits of an organism.
What is the phenotype if the genotype is TT?
tall
The phenotype of a plant with the genotype Tt would be tall. Here tallness (T) is a dominant trait over dwarfness (t), which is recessive.
What is the phenotype for the genotype RR?
The allele that produces red flower color (R) is not completely expressed over the allele that produces white flower color (r). The result in the heterozygous genotype (Rr) is a phenotype that is a mixture of red and white, or pink.
What does dbGaP stand for?
Database of Genotype and Phenotype
Database of Genotype and Phenotype (dbGaP) refers to NIH maintained database of datasets and was developed to archive and distribute the results of studies that have investigated the interaction of genotype and phenotype. dbGaP provides two types of data – open access and controlled access.
What does TT genotype mean?
The genotype is represented by letter combinations, such as TT, Tt, and tt. When an organism has two of the same alleles for a specific gene, it is homozygous (homo means “same”) for that gene. An organism can be either homozygous dominant (TT) or homozygous recessive (tt). The genotype expresses the phenotype.
What are the phenotypes of TT and TT plants?
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. Only the tt genotype expressed the short phenotype.
What is the genotype of RR and RR?
Hybrid round peas would have one copy of the R allele and one copy of the r allele, and a genotype of Rr. An individual who carries two copies of the same allele (i.e. RR or rr) is called a homozygote (homo = same, zygote = embryo). Homozygotes produce genoctypially identical offspring when allowed to self-fertilize.
What is RR Punnett Square?
RR or rr is a purebred trait. phenotype – Phenotype is the physical appearance of the organism. For example whether the organism is green, yellow, round, wrinkled, pink, blue etc. Here is the problem we are going to solve. In pea plants, round seeds are dominant over wrinkled seeds.
What data is in dbGaP?
The information contained in dbGaP includes individual-level molecular and phenotype data, analysis results, medical images, general information about the study and documents that contextualize phenotypic variables, such as research protocols and questionnaires.
How do I submit to dbGaP?
To fill out the study config, go to your study’s dbGaP Submission Portal (https://submit.ncbi.nlm.nih.gov/dbgap/). Click on “Create” if newly filling out the study config or click on “Edit” to modify an existing study config. Once done, press “Submit” and you will be taken back to the study’s Submission Portal page.
What is the ratio of phenotype to genotype?
Otherwise, a heterozygous individual crossed with a homozygous recessive individual will always produce offspring with a phenotypic ratio of 1:1. Both these variants have genotypic ratios of 1:1.
Which is the most common Punnett square for genotype?
The most common Punnett square is that of a monohybrid cross. It shows the alleles of only one gene. When a homozygous dominant individual is crossed with a homozygous recessive individual, the offspring produced will have the heterozygous genotype and show the dominant phenotype.
How many genotypes are produced in a monohybrid cross?
When these heterozygous individuals are crossed, three different genotypes are produced in a ratio of 1:2:1. The phenotypic ratio, however, is 3:1. These monohybrid crosses support the laws of Mendelian genetics.
Can a heterozygous individual produce a dominant phenotype?
A heterozygous individual crossed with a homozygous dominant individual will always produce offspring with the dominant phenotype. Otherwise, a heterozygous individual crossed with a homozygous recessive individual will always produce offspring with a phenotypic ratio of 1:1.
