K327 / K328 / 2027

Chapter 10 / 3 short lessons

Molecular genetics

Connect DNA, genes and chromosomes, use complementary base pairing and follow information into a polypeptide.

G3 Combined Biology / K327 / K328 / 2027 syllabus

Start: DNA, genes and chromosomesRead the summary

What do you think?

One DNA strand contains the bases A C T G. Must the opposite strand be identical?

Lessons

0 of 3 marked as read
01

DNA, genes and chromosomes

Explain that genes are DNA sequences carried on chromosomes and act as units of inheritance.

About 4 min
About 4 min02

DNA structure and base pairing

Describe the DNA double helix and nucleotide components, and apply complementary base pairing.

About 5 min
About 5 min03

From a gene to a polypeptide

Connect the order of DNA bases to a specific polypeptide and its possible function.

About 5 min
About 5 min
What you will be able to do
  • Relate genes, DNA and chromosomes.
  • Describe nucleotide structure and complementary pairing.
  • Explain how DNA information specifies a polypeptide.

Ready to try it without your notes?

Start with a quick check or explain a biological result in your own words.

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