A man and wife have one son with cystic fibrosis, an autosomal recessive condition. What is the genotypes of both the parents and their son? What are the chances that they will have a second child with cystic fibrosis?

92 sathe best for the question 11. most animals and plants reproduce sexually. this means that dna is passed down to new organisms from two parental organisms. which of the following is a key advantage of sexual reproduction?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?