An allele is a variation or a type of gene
ressesive
A malignant gene is one that can produce a cancer.
No, a person with type a blood and a person with type O blood can not produce an offspring with AB blood. The person with type A has either two genes which code for the A protein or one gene (either IAIA or IAi) while the person with type O blood is ii. there are therefore on genes which code for B available and the production of a child with AB blood is not possible.
the human protein coded for by the human gene
The A and B alleles code for enzymes that produce the type A and B antigens respectively. A third version of this gene, the O allele, codes for a protein that is not functional and does not produce surface molecules. Two copies of the gene are inherited, one from each parent. The possible combination of alleles produce blood types in the following way.
The purpose of a gene is to provide the code for the instructions to produce proteins.
The gene that is always expressed and will produces a trait is a genetic statistic. This statistic is what is created when the gene is dominant.
We are looking for the possible blood types of a baby.Parental information:Mother type A -- can be AA or AO = contributes A or O geneFather type A -- can be AA or AO = contributes A or O geneBaby receives one gene from each parent: Baby is type AA = Type ABaby is type AO = Type ABaby is type OO = Type OSince neither parent can contribute the B gene, it is impossible for this pairing to produce an AB child.
We are looking for the possible blood types of a baby.Parental information:Mother type A --can be AA or AO = contributes A or O geneFather type O --can only be OO = contributes O geneBaby receives one gene from each parent: Baby is type AO = Type ABaby is type OO = Type OGenerally, to produce an AB baby, the A gene must come from one parent, and the B gene from the other. In this case, one parent is Type O and cannot provide the B gene. HOWEVER: There is more to ABO blood typing that just the ABO gene.There is also an inhibitory gene that will change any genotype into the phenotype O.Therefore a person with genetically AB blood can be tested as having Type O.If the Type O parent has the inhibitory gene affecting his B or AB type,then the Type AB baby is definitely possible.
somatic gene
Junk DNA gene