YY is the homozygous dominant genotype (2 Y alleles). The phenotype of this genotype is yellow seed color. Yy is the heterozygous genotype (one dominant allele, one recessive allele).
Is YY a hybrid?
The GENOTYPE is 100% HETEROZYGOUS. If two of these hybrids are now crossed, a second filial or F2 generation can be produced. There are 2 phenotypes. 75% of seeds will be YELLOW.
Is Brown a genotype or phenotype?
Genotype is the genetic makeup of an individual eg Bb. Phenotype is the physical appearance eg brown hair.
Are homozygous genotypes?
The presence of two identical alleles at a particular gene locus. A homozygous genotype may include two normal alleles or two alleles that have the same variant.
Which genotype is purebred?
Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS.
What are the 3 types of genotypes?
There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.
Is YY genotype possible?
Yy is the heterozygous genotype (one dominant allele, one recessive allele). The phenotype of this genotype is yellow seed color. yy is the homozygous dominant genotype (2 y alleles). … So, a YY genotype can only produce gametes with Y alleles.
Are blue eyes genotype or phenotype?
Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.