A bull with two alleles for a black coat is homozygous (BB). A calf that has one allele for red coat color and one allele for black coat color is heterozygous (Bb). Heterozygous individuals contain two different alleles which results in conflicting instructions.
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”.
Is BB homozygous or heterozygous?
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. In our example, this genotype is written Bb.
What is B genotype?
Type B: The genotype is either BB or BO. The antigens on the blood cell are B and the antibodies in the blood plasma are A. Type AB: The genotype is AB. The antigens on the blood cell are A and B. There are no A or B antibodies in the blood plasma.
Is BB a homozygous genotype?
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.
Is QQ homozygous or heterozygous?
Homozygous genotypes have either all dominant alleles (all capital letters) or all recessive alleles (all lowercase letters). TT, YY, PP, MM, QQ, qq, mm, tt. 13) In this list of genotypes, which ones are examples of HETEROZYGOUS genotypes? TT, Tt, YY, Hh, Ll, Pp, PP, MM, Nn, Rr, Qq, QQ, qq, mm, tt.
Is it better to be homozygous or heterozygous?
So in the homozygous condition, a cell possesses either two same type dominant alleles (RR) or recessive alleles (rr). Whereas in the heterozygous condition the cell contains two non-identical alleles (Rr).
|When two identical alleles are present.||When two different alleles are present.|
Which blood group person should not marry?
So Rh +ve man should try to avoid marrying Rh-ve lady. Newborn with erythroblastosis fetalis may need an exchange transfusion. In 1st pregnancy, the problem is less severe but in subsequent pregnancies, a problem becomes more severe.