Genetika 2 Flashcards

1
Q

Komplementarita

A

Na vzniku znaku spolupracují 2 geny

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2
Q

epistáze

A

Urcita alela 1 genu potlacuje projev jineho genu

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3
Q

Kumulativni duplicitni interakce

A

Ucinek genu se scita : projev znaku je ovlivnen poctem dominantnich alel 2 nebo vice genu

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4
Q

Kvantitativni znaky

A

Jejich projev lze vyhodnotit merenim (pr vyska, hmotnost, iq)
Rizeny velkym poctem genu

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5
Q

Kvalitativni znaky

A

Maji 2 nebo vice alternativnich projevu (pr barva, tvar, krevni skupina)
Jejich vznik je vlivnovan tzv majorgeny

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6
Q

Heriabilita

A

Dedivost
Udava miru dedicneho urceni znaku

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7
Q

Koeficient dedivosti h2

A

Podil geneticky podminene variability na celkove fenotypove variabilite urciteho znaku

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8
Q

1 morganuv zakon

A

Geny jsou ulozeny na chromozomech linearne za sebou
Kazdy gen ma sve misto LOKUS : misto na chromozomu, kde je lokalizovan urcity gen

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9
Q

2 morganuv zakon

A

Geny umistene na stejnem chromozomu jsou ve vazbe - tvori vazbovou skupinu

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10
Q

Sila vazby

A

Vyjadruje pravdepodobnost, ze mezi 2 geny probehne crossing over (rekonbinace) - cim blize jsou geny, tim je vazba silnejsi a tim je mensi pravdepodobnost, ze dojde ke crossing overu

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11
Q

Typ drosophila

A

X

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12
Q

Gen sry

A

X

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13
Q

Barrovo telisko

A

X

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14
Q

Typ abraxas

A

X

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15
Q

Typ protenor

A

X

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16
Q

3 morganuv zakon

A

X