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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

The Understanding of Genetics Flashcards

All 6 cards in this deck

What experiments did Gregor Mendel carry out in the mid-19th century?: Breeding experiments on plants.
What did Mendel conclude about how each characteristic is inherited?: It is determined by 'units' that are passed on to descendants unchanged.
What was observed about chromosomes in the late 19th century?: Their behaviour during cell division.
In the early 20th century, what idea came from seeing that chromosomes and Mendel's 'units' behaved in similar ways?: That the 'units', now called genes, are located on chromosomes.
What major discoveries about inheritance were made in the mid-20th century?: The structure of DNA was determined and the mechanism of gene function was worked out.
True or false? The importance of Mendel's work was recognised straight away by other scientists.: False. Chromosomes and genes had not yet been discovered, so his 'units' could not be explained; his importance was only recognised after his death.