Aperson with blood group a produces antibodies against b. a person with blood group b produces antibodies against a. a person with blood group ab produces no antibodies. how can you explain this? a and b alleles are co-dominant. therefore, both a and b carbohydrates are present on the cell. a is incompletely dominant over b. both a and b carbohydrates are present on the cell. a and b alleles are co-dominant. half the cells have only a, and other half have only b.
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Biology, 22.06.2019 10:40
Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.
Answers: 2
Aperson with blood group a produces antibodies against b. a person with blood group b produces antib...
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