Let's define what symbols mean in Genetics:
• Two capitalized letters signify a homogenous dominant genotype, i.e BB. This is what is known as ,purebred,.
,
• One capitalized and one lowercase letter signifies a heterozygous dominant genotype, i.e Bb. This is what is known as a ,hybrid,.
,
• Two lowercase letters signify a homogenous recessive genotype, i.e bb. This is also ,purebred,.
Using this information, we can answer the question provided to us:
0. Bb - since there is one capitalized and one lowercase letter, it will be a heterozygous genotype. Therefore, it will be a ,hybrid,.
,
1. Cc - same case with #1. It is a heterozygous genotype and therefore a ,hybrid,.
,
2. FF - since there are ,two, capitalized letters, it will be a homozygous dominant genotype. Therefore, it will be ,purebred,.
,
3. PP - same case with #3. It is a homozygous genotype and therefore a ,purebred,.
,
4. Mm - same case with #2. It is a heterozygous genotype and therefore a ,hybrid,.
,
5. XX - same case with #4. It is a homozygous genotype and therefore a ,purebred,.
,
6. EE - same case with #6. It is a homozygous genotype and therefore a ,purebred,.
And we have found which genotypes are hybrids and which are purebreds!