The answer is true, the properties of carbons do make it the backbone of molecules that form living matter.
Answer: Live R strain + Heat-killed S strain
Answer:
Explanation:
Possible Essays for Life Science:
1. "Explain four management strategies to improve the quality of drinking water. Uncle Two sources of water pollution and Two effect of water pollution on human health.
"
2. "Eutrophication is one of most important water quality problem South Africa. Describe Eutrophication, what causes it and how it affects water quality."
3. "Describe the significance of DNA replication and meiosis and how the foetus is protected and nourished in the uterus."
4. "Describe how meiosis contribute to genetic variation and how
abnormal meiosis leaf to down syndrome and polyploidy. Also
describe advantages of polyploidy in agriculture.
"
This would be a recessive disease.
Father is dd
Mother is Dd (has to be because one child has the disease)
Parents cross is dd x Dd which gives rise to Dd (0.5) and dd (0.5). Each time they have a child they have a 50% chance of the child having the disease. In their case, only one of their 3 children is dd. The others though are carriers!