What is the genotype ration between the cross yyrr x yyrr?

yyrr: 2yyrr: 2yyrr: 4yyrr: yyrr: 2yyrr: yyrr: yyrr: yyrr
2yyrr: 2yyrr: 2yyrr: 4yyrr: yyrr: 2yyrr: yyrr: yyrr: yyrr
yyrr: 2yyrr: 2yyrr: 4yyrr: yyrr: 2yyrr: yyrr: yyrr: 2yyrr
yyrr: 2yyrr: 2yyrr: 4yyrr: yyrr: 2yyrr: yyrr: 2yyrr: yyrr

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide