In human blood types, alleles A and B are codominant and are both dominant to allele i. Type O blood results from the genotype ii. What blood types are possible among the children of two parents with type O blood?

A and B only

A and O only

O only

Which statement correctly compares metaphase i and metaphase ii? in metaphase ii twice as many chromosomes line up along the middle of the cell as in metaphase i. in metaphase i twice as many chromosomes line up along the middle of the cell as in metaphase ii. in metaphase ii twice as many chromosomes are pulled to opposite ends of the cell as in metaphase i. in metaphase i twice as many chromosomes are pulled to opposite ends of the cell as in metaphase ii.