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TASBiology

Unit 3: Heredity and Continuity of Life

4 dot points across 4 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do we manipulate and analyse DNA, and what are the implications?

Explain the principles and applications of key biotechnology tools and evaluate their implications.
Principles and applications of PCR, gel electrophoresis, recombinant DNA, and CRISPR-Cas9 gene editing, plus ethical implications, for TCE Biology Unit 3.
8 min answer →

How do cells divide and how does meiosis create genetic variation?

Compare mitosis and meiosis and explain how meiosis generates genetic variation.
The cell cycle, the stages and roles of mitosis and meiosis, and how meiosis produces genetically varied haploid gametes, for TCE Biology Unit 3.
7 min answer →

How does the sequence of DNA direct the synthesis of proteins?

Describe the structure of DNA and explain how transcription and translation produce proteins.
How DNA stores information and how transcription and translation convert that information into proteins, plus gene regulation, for TCE Biology Unit 3.
8 min answer →

How are characteristics passed from parents to offspring and why do offspring vary?

Apply Mendelian inheritance to predict genotype and phenotype ratios and explain sources of variation.
Mendelian inheritance, monohybrid and dihybrid crosses, sex linkage, pedigrees, and the sources of genetic variation, for TCE Biology Unit 3.
8 min answer →