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kogti [31]
4 years ago
12

Dna methylation is a mechanism used by eukaryotes to do what?

Biology
1 answer:
Rom4ik [11]4 years ago
4 0

Answer:

The correct answer is - inactivity of genes.

Explanation:

DNA methylation is a process in which the DNA molecule is attached to the methyl groups. Methylation affects the activity of the segment of DNA without modifying or changing the sequence of the gene.

If methylation takes place within the promoter region of the gene, DNA acts as a represser for the process of gene transcription. Inactivity of the gene is by the help of methylation in the eukaryotes is to control the gene expression.

Thus, the correct answer is - inactivity of genes.

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Answer:

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Water which is returned to the environment after secondary treatment is known as:
Mashcka [7]
The answer to this question is evaporation
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What would you say is the most significant result of the technology revolution in archaeology ?
Igoryamba

Answer:

Improvement of preservation techniques.

Explanation:

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3 years ago
What shape represents the phosphate in a nucleotide?
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Answer:

Each nucleotide is made up of a nitrogenous base, a pentose sugar, and a phosphate. The remainder of the molecule forms the pentose sugar.

Explanation:

8 0
3 years ago
Una solución de 0.204 M de NaOH seutiliza para neutralizar 50 mL de una solución de H3PO4. Si se necesitaron 16.4 mL de la soluc
vfiekz [6]

Answer: 0.05 M

Explanation:

Para responder esta pregunta, hay que tener en cuenta la Ley de Conservación de la Masa. <u>La misma indica que en una reacción química en un sistema cerrado, la masa total de las moléculas que participan permanece constante.</u> Esto significa que la masa utilizada en los reactivos es la misma que la masa de los productos generados.

En este problema, se cuenta con una solución de NaOH (hidróxido de sodio) tiene una molaridad de 0.204 (siendo la molaridad el número de moles por litro de solución) y se utilizan 16.4 mL de dicha solución para agregarla a 50 mL de una solución de H3PO4 (ácido fosfórico).

Entonces, ya que la masa de ambas soluciones no se pierde, podemos utilizar la ecuación de la Ley de Conservación de la Masa:

Concentración inicial x Volumen inicial = Concentración final x Volumen final.

Concentración inicial: 0.204 M

Volumen inicial: 16.4 mL

Concentración final: ?

Volumen final: 50 mL + 16.4 mL = 66.4 mL

Reemplazamos los valores en la ecuación:

0.204 M x 16.4 mL = Concentración final x 66.4 mL

La molaridad de la solución de H3PO4 es de 0.05 M.

7 0
3 years ago
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