What is the probability that 2 parents with type O blood will have a child with type O blood? 4/4 (100%)
1/4 (25%)
2/4 (50%)
3/4 (75%)

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

About how much of the cell mass is watet