What is a BB genotype quizlet?
genotype. The type of alleles carried by an individual. Examples include: Homozygous dominant (BB), heterozygous (Bb), or homozygous recessive (bb) phenotype. the observable physical characteristics of an organism, as determined by the genotype (the expressed trait such as brown eyes)
What are 5 examples of genotypes?
Examples of Genotype:
- Height. For an individual’s gene makeup there is tall variety (T) and there is short variety (s). T and s are called the alleles. …
- Freckles or no freckles. Again the information that is passed from parent to child is carried in the cell of the genotype. …
- Lactose intolerance.
What is the phenotype of the fish with a genotype BB?
The recessive pink phenotype is produced only when a fish is homozygous recessive (bb).
What is BB and BB?
So for eye color, brown is B and blue is b. As I said above, people have two versions of each gene so you can be BB, Bb, or bb–BB and Bb have brown eyes, bb, blue eyes. … As you can probably guess, if the blue version of the eye color gene made a pigment, then you’d get some mix of brown and blue.
Is BB heterozygous or homozygous quizlet?
The Bb is heterozygous because it is a hybrid and its alleles are both different from each other.
Is BB a genotype?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. … In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.
What are the 3 types of genotypes?
There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.
What is the genotype for black chickens?
In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype of White Rose?
You know that the genotype rr gives white flowers, and this happens in one combination, so 1/4 of the offspring will have white flowers. Lastly, you know that the Rr genotype results in pink flowers. This happens in two combinations, therefore 1/2 of the offspring have pink flowers.