pls explain homozyous or hetrozyous blood groupl
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For each gene in your DNA you have two copies, known as alleles. One copy came from your mother, and the other from your father. If you are a homozygote, it means the two alleles match. Heterozygotes have two different alleles for that gene.
Your phenotype (the actual trait you exhibit) is determined by looking at which of the two copies is dominant. For many genes, one allele is going to be dominant and the other recessive. If you are a heterozygote, the dominant allele will be the one that determines the phenotype.
In the case of blood types, the O gene is recessive. This means that if you have any other type of allele along with the O allele, your phenotype is determined by the other allele. A and B genes are both dominant, so if they are paired together they’ll both determine phenotype. This is a type of dominance called co-dominance, and is actually not too common in humans. Here’s a summary of the genotypes each blood type can have:
Type A blood: genotypes AA and AO
Type B blood: genotypes BB and BO
Type AB blood: genotype AB
Type O blood: genotype OO
Your phenotype (the actual trait you exhibit) is determined by looking at which of the two copies is dominant. For many genes, one allele is going to be dominant and the other recessive. If you are a heterozygote, the dominant allele will be the one that determines the phenotype.
In the case of blood types, the O gene is recessive. This means that if you have any other type of allele along with the O allele, your phenotype is determined by the other allele. A and B genes are both dominant, so if they are paired together they’ll both determine phenotype. This is a type of dominance called co-dominance, and is actually not too common in humans. Here’s a summary of the genotypes each blood type can have:
Type A blood: genotypes AA and AO
Type B blood: genotypes BB and BO
Type AB blood: genotype AB
Type O blood: genotype OO
aditi97:
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i have one question
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if a man with B blood grup marries with woman of blood group ö
what is child"s blood group
The possible genotypes of a man with blood type B are BB or BO and the genotype of a woman with blood type AB is AB. The child would receive an A allele or a Ballele from the mother and a B allele or an O allele from the father.
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