5a. Blood Type--Multiple Alleles Blood type in humans is a trait that is controlled by multiple alleles. The possible alleles that can be inherited are A, B, and 0, but each person only inherits two alleles. Alleles A and B both produce antigens, but O produces no antigens. This means that a person who has an A or B allele or both will express that blood type. O is recessive to A and B so I like to use the lower case letter i to remind me that it is recessive. For example, Ai and AA = blood type A Bi and BB = blood type B, and AB = blood type AB. Since O produces no antigens, it does not affect blood type when paired with A or B, but when a person inherits two O alleles (i), they have blood type 0. For a cross between an individual with the genotype (Ai) and an individual with the genotype (BB), please fillin the Punnett square and genotypic and phenotypic ratios below. (blank) 5b. Write the proportions, percents, and ratios for the genotypes and phenotypes of this cross Genotype: Proportions/Percents: Ai = 14 or Bi = /4 or AB= 14 or AA= 14 or BB = /4 or Ratio: Phenotype: Proportions/Percents: Blood type A 14 or Blood type B= 14 or Blood type AB = 14 or Ratio: | 建澳
5a. Blood Type--Multiple Alleles Blood type in humans is a trait that is controlled by multiple alleles. The possible alleles that can be inherited are A, B, and 0, but each person only inherits two alleles. Alleles A and B both produce antigens, but O produces no antigens. This means that a person who has an A or B allele or both will express that blood type. O is recessive to A and B so I like to use the lower case letter i to remind me that it is recessive. For example, Ai and AA = blood type A Bi and BB = blood type B, and AB = blood type AB. Since O produces no antigens, it does not affect blood type when paired with A or B, but when a person inherits two O alleles (i), they have blood type 0. For a cross between an individual with the genotype (Ai) and an individual with the genotype (BB), please fillin the Punnett square and genotypic and phenotypic ratios below. (blank) 5b. Write the proportions, percents, and ratios for the genotypes and phenotypes of this cross Genotype: Proportions/Percents: Ai = 14 or Bi = /4 or AB= 14 or AA= 14 or BB = /4 or Ratio: Phenotype: Proportions/Percents: Blood type A 14 or Blood type B= 14 or Blood type AB = 14 or Ratio: | 建澳
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter12: Mendel's Experiments And Heredity
Section: Chapter Questions
Problem 13RQ: The ABO blood groups in humans are expressed as the IAlB, and IAalleles. The allele encodes the A...
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Transcribed Image Text:5a. Blood Type--Multiple Alleles
Blood type in humans is a trait that is controlled by multiple alleles. The possible alleles that can be inherited are A, B, and 0, but each person only inherits two alleles. Alleles A and B both produce antigens, but O produces
no antigens. This means that a person who has an A or B allele or both will express that blood type. O is recessive to A and B so I like to use the lower case letteri to remind me that it is recessive. For example, Ai and AA =
blood type A, Bi and BB = blood type B, and AB = blood type AB. Since O produces no antigens, it does not affect blood type when paired with A or B, but when a person inherits two O alleles (ii), they have blood type 0.
For a cross between an individual with the genotype (Ai) and an individual with the genotype (BB). please fill n the Punnett square and genotypic and phenotypic ratios below.
(blank)
5b. Write the proportions, percents, and ratios for the genotypes and phenotypes of this cross
Genotype:
Proportions/Percents:
Ai =
/4 or
Bi =
/4 or
AB =
/4 or
AA =
14 or
BB =
/4 or
Ratio:
Phenotype:
Proportions/Percents:
Blood type A=
/4 or
Blood type B =
/4 or
Blood type AB =
(4 or
Ratio:
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