Genetics and Epigenetics (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is genetics the study of?
What is genetics the study of?
Heredity & trait inheritance
What is a key feature of epigenetic changes?
What is a key feature of epigenetic changes?
They are reversible
How do genetic changes differ from epigenetic changes?
How do genetic changes differ from epigenetic changes?
Genetic changes are typically irreversible
What is the genome?
What is the genome?
Complete set of genetic material
When was the Human Genome Project largely completed?
When was the Human Genome Project largely completed?
2003
What happens during methylation in epigenetics?
What happens during methylation in epigenetics?
group attaches & blocks gene
Which factors can influence epigenetic gene expression?
Which factors can influence epigenetic gene expression?
Diet, exercise & environment
What epigenetic change occurs at puberty?
What epigenetic change occurs at puberty?
Sex hormone genes are switched on
How can smoking affect epigenetics and cancer risk?
How can smoking affect epigenetics and cancer risk?
Removes methyl groups from division genes
What does the Himalayan rabbit example demonstrate?
What does the Himalayan rabbit example demonstrate?
Temperature affects pigmentation
What did the Dutch Hunger Winter study show about epigenetics?
What did the Dutch Hunger Winter study show about epigenetics?
Changes passed to grandchildren
How many chromosomes does a human zygote contain after fertilisation?
How many chromosomes does a human zygote contain after fertilisation?
46
What defines a species?
What defines a species?
Organisms that interbreed & produce fertile offspring