The presence of three alleles I the ABO blood grouping system is an example of

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a. cornb. ironc. cottonseedd. vitamin a

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm