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 type of cells contain chloroplasts with cpDNA?
Which type of cells contain chloroplasts with cpDNA?
Plant cells only
What is the structure of non-nuclear DNA?
What is the structure of non-nuclear DNA?
Small, circular loops
Approximately how many genes does mitochondrial DNA contain?
Approximately how many genes does mitochondrial DNA contain?
37 genes
Approximately how many genes does chloroplast DNA contain?
Approximately how many genes does chloroplast DNA contain?
100 genes
How is non-nuclear DNA inherited?
How is non-nuclear DNA inherited?
From the mother only
Why don't sperm mitochondria contribute to offspring?
Why don't sperm mitochondria contribute to offspring?
Only sperm head enters 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 systems are typically affected by non-nuclear DNA disorders?
Which systems are typically affected by non-nuclear DNA disorders?
High energy demand organs
What inheritance pattern do families with mtDNA disorders show?
What inheritance pattern do families with mtDNA disorders show?
Maternal inheritance
What does the presence of DNA in mitochondria and chloroplasts support?
What does the presence of DNA in mitochondria and chloroplasts support?
Endosymbiotic theory