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vagabundo [1.1K]
3 years ago
5

A person who is homozygous for the x chromosome is

Biology
1 answer:
xxMikexx [17]3 years ago
7 0
A person who is homozygous for the X chromosome is female.
Women have two X chromosomes, which means they are homozygous for the X chromosome - the word homozygous means that they have 'two chromosomes of the same kind.' Men have different types of chromosomes - XY. 

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The answer is B. a male with one recessive allele since his mother has both recessive alleles and his father has one recessive allele because the daughter has both recessive alleles

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3 years ago
2) ¿Cuál de los siguientes hechos no es una evidencia de una reacción química? a) Presencia de un catalizador b) Cambio de color
Pepsi [2]

Answer:

a) Presencia de un catalizador

Explanation:

Los dos tipos de cambios que experimentan las sustancias en la química son cambios químicos y físicos.

Un cambio físico es un cambio es un cambio en el que la sustancia cambia en su apariencia o su forma de una manera que es reversible y en la que no se forma una nueva sustancia.

Un cambio químico es aquel en el que hay un cambio en las sustancias presentes y se forma una nueva sustancia.

La evidencia de que ha tenido lugar un cambio químico incluye

1) La formación de un precipitado a partir de la mezcla de sustancias.

2) Un cambio en el color de las sustancias.

3) Un cambio en el olfato (que desprende un olor) o en el sabor.

4) La sustancia produce luz (brilla)

5) El volumen total cambia

6) Cambio de temperatura (la mezcla se calienta o enfría)

Por lo tanto, la presencia de un catalizador, que es una sustancia que no participa en una reacción pero aumenta la velocidad de reacción, no es evidencia de una reacción química.

3 0
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Photosynthesis produces the chemical energy that a plant’s cells need. What form does this chemical energy take?
bezimeni [28]

Answer:

Glucose

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Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

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D) Improve the precision of the data.

Hope it helps! :)

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I think the answer is b
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3 years ago
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