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In: Biology

31) Predict blood types from any cross provided to you.  Identify the universal blood donor and acceptor...

31) Predict blood types from any cross provided to you.  Identify the universal blood donor and acceptor and explain why those blood groups are labelled that way.

32) Explain the difference between dominant and recessive traits and identify variations on Mendel’s laws- including incomplete dominance and multiple alleles.

33) Lab 4 Objective: Gain a better understanding of enzymes and some conditions that affect enzyme 
activity and the rate of an enzyme-catalyzed reaction. 


34) State hypotheses, make predictions, and identify independent and dependent 
variables in these experiments.

Solutions

Expert Solution

31) Blood type is determined by the ABO locus, three alleles at ABO locus determines the blood type.

IA, IB and i alleles.

IAIA, IAi- A type blood

IBIB, IBi- B type blood

IAIB- AB type blood

ii- O type blood

the blood type of the progeny depends on the blood type of parents, that is if the progeny inherits IA allele from both parents the blood type is A type, If the progeny inherits IA allele from one parent and i allele from another parent blood type is A-type.

if the progeny inherits IB allele from both parents the blood type is B type, If the progeny inherits IB allele from one parent and i allele from another parent blood type is B type.

If the progeny inherits IA allele from one parent and IB allele from another parent the phenotype is AB type.

if the progeny inherits i allele from both parents the blood type of the progeny is O.

type O blood is the universal donor because O type blood does not have A and B antigens, antigens in the donor's blood interact with antibodies in the acceptor's blood and coagulation occurs since type O has no A and B antigens so type O blood is the universal donor.

Type AB blood has both A and B antigens and no antibodies so it can receive any blood type since it lacks A and B antibodies coagulation won`t occur, so type AB blood is the universal acceptor.


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