Apomixis and Polyembryony Flashcards

1
Q

apomixis

A

produce seeds without fertilization

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2
Q

observed in which plants

A

asteraceae and grasses

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3
Q

fruit formation without fertilization is called

A

parthenocarpy

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4
Q

how does apomixis takes place

A

the diploid egg cell does not undergo reduction division and does not get fertilized

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5
Q

Polyembryony

A

seeds containing more than one embryo is called polyembryony.

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6
Q

which fruits exhibit polyembryony

A

orange mango

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7
Q

how does polyembryony occur

A

many nucellar cells divide and protrude into the embryo sac and develop int the embryo. hence the ovule contains more than embryo

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8
Q

how does apomixis help farmers

A

if hybrid crops are converted into apomicts, they will not segregate their characters and the farmers do not have to buy the expensive crops every year.

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9
Q

another name for apomixis

A

agamospermy

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