Non-Nuclear Inheritance (Leaving Cert Biology): Flashcards
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What is non-nuclear inheritance?
What is non-nuclear inheritance?
Passing on genes without using the nucleus
Where are most genes located?
Where are most genes located?
On chromosomes in the nucleus
Where are non-nuclear genes found?
Where are non-nuclear genes found?
On DNA in mitochondria and chloroplasts
Do sperm cells pass mitochondria to zygote?
Do sperm cells pass mitochondria to zygote?
No - sperm don't pass any mitochondria
What do egg cells contribute to zygote?
What do egg cells contribute to zygote?
Mitochondria (passed to offspring)
From which parent do we inherit mitochondria?
From which parent do we inherit mitochondria?
From our mothers (maternal inheritance)
What is 'mitochondrial Eve'?
What is 'mitochondrial Eve'?
Term referring to maternal inheritance of mitochondria
How are mitochondrial DNA genes inherited?
How are mitochondrial DNA genes inherited?
Only from the mother