GENÉTICA II
Quiz
•
Science
•
12th Grade
•
Practice Problem
•
Hard
BIOLOGÍA BIOTADEO
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. En un cruzamiento del tipo AaBb x AaBb, donde los alelos presentan dominancia completa, ¿qué relación fenotípica se expresa en la descendencia?
A) 1:2:1:2:4:2:1:2:1
B) 1:1:1:1
C) 9:3:3:1
D) 3:6:3:1:2:1:4:2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2. El cabello rubio es recesivo sobre el negro y pestañas normales dominantes sobre las cortas. Una mujer dihíbrida de cabello oscuro con pestañas normales se casa con un hombre del mismo genotipo. Entonces se espera obtener
A) 3/16 rubios de pestañas cortas
B) 9/16 negros de pestañas cortas
C) 9/16 dihíbrido
D) 3/16 rubios de pestañas normales
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Sobre la siguiente imagen se puede afirmar que
A) Es resultado de una dominancia completa
B) Es resultado de una dominancia intermedia
C) Es resultado de una dominancia incompleta
D) Es resultado de alelos múltiples
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4 Al cruzar Pisum sativum de vaina inflada amarilla con plantas de vaina constreñida verde, se obtiene una F2 de 2400 descendientes. ¿Cuántos se espera que fueran de vaina constreñida amarilla?
A) 450
B) 150
C) 2400
D) 1350
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. Considere el cruzamiento: AaBb x AaBb y señale que proporción de la descendencia será fenotípicamente diferente a los parentales.
A) 7/16
B) 3/16
C) 4/16
D) 9/16
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