Assessment Tips

11SCI - Genetics

Finn Le Sueur

2024

School Exam

  • When: Wednesday August 12th, 12.30pm
  • Where: D5
  • What: Genetics (AS90948, External, 4 Level 1 Credits)
  • Time: 1.5 hours

What Do I Need To Know?

1. DNA!

  • Structure: A pairs T and G pairs with C
    • Notes on sciPAD page 13

For the image below, complete the pairs & name the pentagon and circle shaped structures

  • Be able to describe the relationship/differences/similarities between chromosomes, DNA, genes and alleles
    • Notes on sciPAD page 7
    • Notes on genes vs alleles on sciPAD page 14

Using this image, describe in words the relative size/location/structure of chromosomes, DNA, genes and alleles

2. Sexual and Asexual Reproduction

  • What types of cell division occurs in sexual reproduction/asexual reproduction
    • sciPAD page 12 for mitosis (asexual)
    • sciPAD pages 53-56 for meiosis, sexual and asexual reproduction
  • What are the advantages/disadvantages of these types of reproduction
    • ^ Link to variation

Complete the questions on pages 53-56 of the sciPAD

3. Fertilisation

  • Diploid & haploid cells
  • Number of chromosomes at different steps of fertilisation
  • Type of cell division at different steps of fertilisation/reproduction
    • Notes on sciPAD page 57

Complete the questions on page 57 of the sciPAD

  • Define: phenotype and genotype
    • Notes on sciPAD page 23
  • Create a punnet square

Complete questions on pages 24-27 of the sciPAD

  • What do punnet squares mean vs. the real world
  • Predict/explain outcomes of punnet squares

Complete questions on page 28 of the sciPAD

4. Pedigree Charts

  • Reading pedigree charts (circles vs. squares, coloured in vs. white)
    • Notes on sciPAD page 36
  • Predicting the genotype for individuals on a pedigree chart
  • Explain whether a trait is dominant or recessive using a pedigree chart

Complete questions on page 36-39 of the sciPAD

  • Use a punnet square to give an example showing a trait is dominant/recessive
  • Use punnet squares to predict the probability of certain genotypes/phenotypes between pairs on a pedigree chart
    • Notes on sciPAD page 40

Complete questions on page 40 of the sciPAD