Hemophilia is an X-linked recessive disorder. A Punnett square is shown. The columns are labeled Upper X h and Upper Y. The rows are labeled x Upper H and x h. What is the probability of the offspring having hemophilia for the cross that is shown in the Punnett square? 0 percent 25 percent 50 percent 75 percent.

Which of these statements are true about scientific theories and hypothesis

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?