Non-Nuclear DNA (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Where is non-nuclear DNA found in cells?
Where is non-nuclear DNA found in cells?
In mitochondria and chloroplasts
Which cells contain chloroplasts?
Which cells contain chloroplasts?
Plant cells only
What is the structure of non-nuclear DNA?
What is the structure of non-nuclear DNA?
Small, circular loops
How many genes does mitochondrial DNA contain?
How many genes does mitochondrial DNA contain?
Approximately 37 genes
How many genes does chloroplast DNA contain?
How many genes does chloroplast DNA contain?
Approximately 100 genes
What inheritance pattern does non-nuclear DNA follow?
What inheritance pattern does non-nuclear DNA follow?
Maternal inheritance
Why is non-nuclear DNA inherited maternally?
Why is non-nuclear DNA inherited maternally?
Sperm mitochondria don't enter the egg
What is the primary function of mitochondrial DNA?
What is the primary function of mitochondrial DNA?
Energy production
What do chloroplast genes mainly control?
What do chloroplast genes mainly control?
Photosynthesis and pigment formation
Which organs are affected by non-nuclear DNA disorders?
Which organs are affected by non-nuclear DNA disorders?
Muscles, brain, heart, nervous system
What evolutionary theory is supported by non-nuclear DNA?
What evolutionary theory is supported by non-nuclear DNA?
Endosymbiotic theory
Can mitochondria and chloroplasts reproduce independently?
Can mitochondria and chloroplasts reproduce independently?
Yes, independently of cell division