CIENCIAS NATURALES 9NO PRUEBA 1 PRIMER TRIMESTRE 2021
Quiz
•
Science
•
5th Grade
•
Practice Problem
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Medium
dionel rodríguez
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Constituida por 2 cadenas de nucleótidos que se disponen formando una estructura conocida como doble hélice.
ADN
ARN
ARNm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un gen en realidad no es un fragmento de ADN, esta es una idea equivocada que debemos empezar a aceptar y estudiar la literatura molecular.
Cierto
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las formas en la que un gen se puede expresar se le conocen como...
Locus
Alelos
cromosomas sexuales
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
un nucleótido está compuesto por...
azúcar, fosfato y ADN
azúcar, fosfato y base nitrogenada
Fosfato, base nitrogenada y tanina
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El ADN se encuentra en el núcleo con un conjunto de proteínas llamadas...
histaminas
listonas
histonas
hemoglobinas
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual de estas imágenes no representa la cromatina
1
2
3 y 1
4 y 5
ninguna de las anteriores
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
la cromatina es la forma en la que se presenta el ADN en el núcleo celular y posee diferentes niveles de condensación.
Cierto
Falso
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