two
8 different gametes can be produced from the genotype WwXXYyZZ through independent assortment and random segregation of chromosomes during meiosis.
8 different gametes can be produced from the genotype AaBBDDEeff. This is because each gene segregates independently during meiosis, allowing for different combinations of alleles to end up in the gametes.
The plant with genotype TT is homozygous dominant for the trait, while the plant with genotype Tt is heterozygous. When these plants are crossed, all offspring will have the Tt genotype since the dominant allele (T) masks the recessive allele (t) in the heterozygous condition.
Three. Each homozygous genotype will have one phenotype each, and the heterozygote will have a third. Unlike incomplete dominance, where the heterozygote's phenotype is a blending of the two homozygous ones (i.e. crossing homozygous red and homozygous white snapdragons results in pink heterozygotes), codominance means the phenotype for each allele is seen in the heterozygote. An example can be seen in the Andalusian fowl. The two homozygotes have black and white plumage respectively, but heterozygotes appear blue, due to the presence of a fine mosaic of black and white areas (no blending).
B.
Genotypes are not created by phenotypes, they are the alleles/genes of the organism. Genotypes (in combination with environment) produce phenotypes. It would be expected that the genotypes Bb and BB would produce the phenotype B.
2
8 different gametes can be produced from the genotype WwXXYyZZ through independent assortment and random segregation of chromosomes during meiosis.
16
8 different gametes can be produced from the genotype AaBBDDEeff. This is because each gene segregates independently during meiosis, allowing for different combinations of alleles to end up in the gametes.
The plant with genotype TT is homozygous dominant for the trait, while the plant with genotype Tt is heterozygous. When these plants are crossed, all offspring will have the Tt genotype since the dominant allele (T) masks the recessive allele (t) in the heterozygous condition.
A ratio of phenotypes produced by a cross is a description of the expected proportion of different physical traits or characteristics that offspring will inherit from their parents. This ratio is determined by the combination of genes passed down from each parent, and can be predicted using Punnett squares or other genetic tools.
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Three. Each homozygous genotype will have one phenotype each, and the heterozygote will have a third. Unlike incomplete dominance, where the heterozygote's phenotype is a blending of the two homozygous ones (i.e. crossing homozygous red and homozygous white snapdragons results in pink heterozygotes), codominance means the phenotype for each allele is seen in the heterozygote. An example can be seen in the Andalusian fowl. The two homozygotes have black and white plumage respectively, but heterozygotes appear blue, due to the presence of a fine mosaic of black and white areas (no blending).
The AA genotype typically produces the phenotype associated with the dominant allele A. This means that the dominant trait will be expressed in the individual with this genotype.
Due to a genotype, which basically mean codes that can produce proteins, a phenotype is observed. Genes contain information for protein synthesis. The proteins produced in turn produce an externally observable character or trait. This external appearance produced due to the effect of a genotype is phenotype.
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