An individual that contains two different alleles of a gene is heterozygous. Examples. A cow that has two alleles for a red coat is homozygous (bb).
What is heterozygous type B?
Heterozygous means one dominant & one recessive allele. Since they are Type “B”, the dominant allele is IB, & the only recessive allele for blood type is “i”.
What genotype is BB?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
Is a BB genotype homozygous?
If the two alleles inherited for a trait are the same, they are represented by two identical letters, such as BB or bb. This is called a homozygous genotype. If the two alleles are different, such as Bb, the genotype is heterozygous.
What percentage of offspring is blood type B?
So each child has a 75% of being B and a 25% chance of being O. Note that genetically, not all of the B blood type kids are the same. The BB child will only pass down the B version of the gene.
What are the possible genotypes for type B blood?
Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO.
Can heterozygous be dominant?
If the alleles are heterozygous dominant, the faulty allele would be dominant. In such a case, the person may or may not be affected (compared to homozygous dominance where the person would be affected).
Is Black genotype or phenotype?
The appearance of an animal (or any other form of life) is considered its phenotype (think ph = physical). An animal’s genotype is its genetic make-up (think gen = genetic). Black is the phenotype of a calf with at least one black (B) allele. Red is the phenotype of a calf with two red (bb) alleles.