Génotype, phénotype et mutations Flashcards

1
Q

Conséquences du fait que cellule bactérie ne lit pas toute l’info génétique simultanément

A

Expression gènes essentiels/utils + restauration du phénotype original

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2
Q

Si phénotype originale n’est pas restauré

A

Modification du génotype (rare)

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3
Q

Étapes sans modification à l’intérieur du gène (3)

A

ADN, ATGC, Protéines/ARNr

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4
Q

Pourquoi ARNr et pas ARNm

A

Car 1 seule conformation

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5
Q

Types mutation où matériel génétique n’est pas stable (3)

A

Transition, transversion, insertion/déletion

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6
Q

Transition

A

purine->purine (AG), pyrimidine->(CT)

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7
Q

Transversion

A

PurinePyrimidine

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8
Q

Insertion/Déletion

A

Grosse conséquence

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9
Q

Rôle mutation (4)

A

Tolérance substance inibitrice, modification capacité de fermentation, déficience nutritionnelle, biosynthèse structure

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