Quiz 38 ABO blood grouping system has alleles of it, and i. What is this an exam
ID: 211611 • Letter: Q
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Quiz 38 ABO blood grouping system has alleles of it, and i. What is this an example ofi b) multiple alleles d) polygenic traits 7. The ABO Drosop a) only b) and b) only c) and c) only d) and d) only A and a woman of blood group B have a child. if both are heterozygous for what are the chances of them having a child with blood group B? gene, a) b) c) d) 0% 25% 50% 75% 9. The blood groups of a mother and 4 children are indicated on the pedigree chart below. What are the possible blood groups of the father? a) b) c) d) Group A only Group A or B only Group AB only Group A, B or AB only 10. Inheritance of height in humans is due to a) Polyploidy b) Polymorphism d) Polygene inheritance 11. A couple whose blood type are A and B may have a child with which of the following blood types? a) AB only b) A or B only c) A, B, AB, or O d) AB or O only for the ABO blood group. Why are there only two of these alleles normally a) Blood group alleles are not segregated during meiosis b) Each allele in the ABO group must be either dominant or recessive. c) Each parent contributes only one allele for the ABO blood group to the offspring. d) There are not enough nucleotides in a red blood cell to produce a third allele. present in any one individual?Explanation / Answer
7. b) and b) only.
Ia and Ib are co-dominance. The allele i is recessive to both IA and Ib If there are more than two allele in a gene then they are called multiple alleles.
8. b) 25%.
Parents are heterozygous (AO and BO). Therefore, possibilities of having a child with blood group B is 25%.
9. c) group AB only.
10. d) polygene inheritance.
11. a) AB only (if parents are homozygous (AA and BB))
c) A, B, AB or O (if parents are heterozygous (AO and BO))
12. b) each allele in the ABO group must be either dominant or recessive.
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