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. a and b alleles are co-dominant. therefore, both a and b carbohydrates are present on the cell.

b. a is incompletely dominant over b. both a and b carbohydrates are present on the cell.

c. a and b alleles are co-dominant. half the cells have only a, and other half have only b.

Select the correct answer.which scenario describes unethical lab behavior? a.danny stores the chemicals required for his experiment in flasks and beakers.b. anna publishes the results of her experiment on the growth rate of saplings.c. jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.resetnext

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.