Mary Jones and Geoff Jones Solutions for Chapter: Variation and Natural Selection, Exercise 3: Questions
Mary Jones Biology Solutions for Exercise - Mary Jones and Geoff Jones Solutions for Chapter: Variation and Natural Selection, Exercise 3: Questions
Attempt the practice questions on Chapter 19: Variation and Natural Selection, Exercise 3: Questions with hints and solutions to strengthen your understanding. Cambridge IGCSE® Biology Coursebook Third Edition solutions are prepared by Experienced Embibe Experts.
Questions from Mary Jones and Geoff Jones Solutions for Chapter: Variation and Natural Selection, Exercise 3: Questions with Hints & Solutions
Explain why the proportion of dark peppered moths near Manchester in Britain increased at the end of the th century.
Why is it unwise to use antibiotics unnecessarily?
What is meant by stabilizing selection? Give one example.
Draw a genetic diagram to show how two heterozygous parents can have a child with sickle cell anaemia?
Imagine you are a farmer with a herd of dairy cattle. You want to build up a herd with a very high production of milk. You have access to sperm samples from bulls, for each of which there are records of the milk production of his offspring. What will you do?
Describe how you could use artificial selection to produce a new variety of wheat which is naturally resistant to yellow rust?
When resistant varieties of wheat are produced, it is found that after a few years they are infected by yellow rust again. Explain how this might happen.
How could the growing of resistant varieties reduce pollution?
