
Genética. Conceptos
Authored by Ornella Meilijson
Biology
12th Grade
Used 10+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
El fenotipo es la expresión física o los rasgos detectables de un gen.
Falso
Verdadero
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Para que una característica recesiva se pueda expresar fenotípicamente su genotipo debe ser:
Homocigoto
Heterocigoto
Híbrido
Ninguna opción es correcta
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
El genotipo (Aa) se denomina como:
Heterocigoto
Homocigoto
Heterocigoto dominante
Heterocigoto recesivo
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
En una granja de conejos, se realiza un cruce entre dos conejos heterocigotos para un gen. ¿Cuál es la proporción fenotípica esperada en la descendencia?
3 : 1
9: 3: 3: 1
1: 2: 1
50% : 50%
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Una mujer del grupo sanguíneo O se casa con un hombre AB. Los hijos pueden ser:
Grupo O
Grupo AB
Grupos A o B
Todas las anteriores
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Para conocer el genotipo de individuo que manifiesta el fenotipo recesivo, se aplica un retrocruce
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
En las aves de corral con mecanismos de determinación del sexo ZW, los machos son
a) Homocigotos
b) Heterocigotos
c) Hemicigotos
d) A y B son correctas
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