Barney and betty are about to have their first child. they both have "normal" feet but barney's father has flat feet and betty has a child from a previous marriage who has flat feet, meaning they are both heterozygous for the trait. what is the probability that they will have a boy with flat feet(recessive trait)? 25% 75% 100% 50%

Which type of scientific statement is defined as a hypothesis or group of hypotheses that can be accepted as true based on the repeated experimentation with similar results

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.