1. Chargraff’s Rules
Work out ratio of each type of base in each organism.
How does this provide evidence for the complementary base-pair model?
What were the roles of Watson, Crick Wilkins and Franklin in the discovery of DNA?
Label the diagrams with structures AND functions
Describe the similarities and differences between prokaryotic and eukaryotic cells
Label this diagram of DNA
Describe and explain what is happening here
Explain how meiosis and mitosis ensure that every cell in a zygote has the correct number of chromosomes (6 marks)
Write definitions for these key words:
Mitosis
Meiosis
Allele
Gamete
Haploid
Diploid
Zygote
Asexual reproduction
Fertilisation
DNA vs RNA
Outline the main aims of the Human Genome Project
Magnification of:
Light microscope ……………………
Electron microscope …………………
A specimen appears 1mm under the light microscope at 1500x magnification. What is its actual length? …..….. µm