Plastid Inheritance Flashcards
In what cells are plastids found?
Only plant cells.
How many genes are in the plastome?
Around 100.
What genes are found within the plastome?
rRNA, tRNA, proteins in photosynthesis and transcription/translation.
What are plastid nucleoids?
Large protein-DNA complexes associated with the inner envelope membrane.
What are proplastids?
Undifferentiated plastids.
What can proplastids develop into?
Chloroplasts, chromoplasts, gerontoplasts and leucoplasts.
What type of plastid is a chloroplast?
A green plastid that performs photosynthesis.
What type of plastid is a chromoplast?
A coloured plastid used for pigment synthesis and storage.
What type of plastid is a gerontoplast?
A plastid in control of the dismantling of the photosynthetic apparatus.
What type of plastid is a leucoplast?
A non-pigmented organelle used for monoterpene synthesis and roots.
What are the 3 types of non-nuclear DNA inheritance?
High copy number.
Single parent inheritance.
Random segregation.
From which side do angiosperms inherit plastids?
From the female gamete.
From which side do gymnosperms inherit plastids?
From the male pollen.
