Biology, 22.02.2020 20:43 laequity3393

A woman is searching for her father and she has type O blood. She looks through records of men who could be her father. Which blood type can she eliminate from her search? (In other words, her dad cannot be what blood type.). Explain how you know this.

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The blood group in human is decided by 3 alleles A, B, and O. The women that searching for father can eliminate the men with AB blood group.

Blood Group in Humans:

In humans, there are 3 alleles A, B, and O that decide the blood group in humans.

A and B are dominant over the O blood group.The girl with O blood group should have Heterozygous parents with O allele.If the father contains AB alleles, the daughter cannot be O because O is a recessive allele.

Therefore, the women that searching for father can eliminate the men with AB blood group.

To know more about the Blood group, refer to the link:

link

Answer from: zoebtharpe

Blood type AB

Explanation:

In blood typing, three alleles A, B, and O are usually expressed. Alleles A and B are both dominant, while O is recessive.

Hence, if her mother's blood type is B, and the father's blood type is O, then their child must be either B or O.

Also, if both mother and alleged father have type A blood, then the child can only have A or O blood.

However, if her alleged father has type AB blood, it is impossible for the recessive O gene to be transmitted to their child, since each of A and B gene are dominant and must be expressed in his child (the woman in question)

Thus, the woman with type O blood would totally eliminate type AB blood as the possible blood type of her father

Answer from: Quest

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

Answer from: Quest

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