Module 5: Heredity
7 dot points across 3 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.
Inquiry Question 4: How can the genetic similarities and differences within and between species be compared?
- Investigate the inheritance patterns including but not limited to: codominance, incomplete dominance, multiple alleles
A focused answer to the HSC Biology Module 5 dot point on non-Mendelian inheritance. The difference between codominance and incomplete dominance, multiple alleles using ABO blood groups as the worked example, and the standard Punnett squares with worked HSC past exam questions.
6 min answer → - Investigate the inheritance of patterns including but not limited to: predicting genotypic and phenotypic ratios using Punnett squares and probability rules
A focused answer to the HSC Biology Module 5 dot point on Mendelian inheritance. Mendel's laws, dominant vs recessive alleles, Punnett squares step by step, monohybrid and dihybrid crosses, the standard 3:1 and 9:3:3:1 ratios, and worked HSC past exam questions.
6 min answer → - Investigate the inheritance patterns including but not limited to: sex-linkage, codominance, incomplete dominance, multiple alleles
A focused answer to the HSC Biology Module 5 dot point on sex-linked (X-linked) inheritance. Why X-linked recessive disorders affect males more than females, the standard worked Punnett squares for carrier mothers, named examples (haemophilia, colour blindness, Duchenne muscular dystrophy), and worked HSC past exam questions.
6 min answer →
Inquiry Question 2: How important is it for genetic material to be replicated exactly?
- Model the processes involved in cell replication, including but not limited to: mitosis and meiosis, DNA replication using the Watson and Crick DNA model, including nucleotide composition, pairing and bonding
A focused answer to the HSC Biology Module 5 dot point on DNA replication. The semi-conservative model, the enzymes involved (helicase, primase, DNA polymerase, ligase), the leading and lagging strands, and the standard worked exam example.
5 min answer → - Model the processes involved in cell replication, including but not limited to: mitosis and meiosis, the role of meiosis and gamete formation in maintaining the chromosome number across generations
A focused answer to the HSC Biology Module 5 dot point on meiosis. The two divisions, crossing over and independent assortment as sources of genetic variation, comparison with mitosis, and how gamete formation maintains chromosome number across generations.
5 min answer →
Inquiry Question 3: How does genetic information flow from DNA to functional proteins?
- Construct appropriate representations to model and compare the processes of transcription and translation, including but not limited to: the structure of DNA and the contributions of Watson, Crick, Franklin and Wilkins
A focused answer to the HSC Biology Module 5 dot point on DNA structure. The double helix, the sugar-phosphate backbone, the four bases and the A-T/G-C base pairing rules, the historical contributions of Watson, Crick, Franklin (Photograph 51) and Wilkins, and worked HSC past exam questions.
5 min answer → - Construct appropriate representations to model and compare the processes of transcription and translation, including but not limited to: the roles of mRNA, tRNA, rRNA and ribosomes in polypeptide synthesis
A focused answer to the HSC Biology Module 5 dot point on protein synthesis. Transcription in the nucleus (DNA to mRNA), translation at the ribosome (mRNA to polypeptide), the roles of mRNA, tRNA, rRNA, the codon-anticodon match, and the standard worked exam example.
6 min answer →