Why does DNA need to be copied into mRNA?

1 answer:

3 0

mRNA will serve as reference book that contains information as the DNA and its sequence is complementary to the DNA template.

The transfer of information in a DNA strand to a new molecule of messenger RNA is known as transcription. Thus, the process of transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors. However, DNA is copied into mRNA because mRNA will serve as reference book that contains information as the DNA and its sequence is complementary to the DNA template.

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Contraction of myofibrils within a muscle fiber begins when

Amiraneli [1.4K]

Answer: calcium is released from the sarcoplasmic reticulum

Explanation:

Muscle contraction is the stimulation of sites that produce stress within muscle fibres.

Calcium ions bind to tropomyosin in inducing muscle fibre contraction, exposing active site for Crossbridge formation on actin. Then ATP binds to myosin, transferring the myosin to its high-energy state, freeing the myosin head from the active actin site. Triggering tension-generating sites within muscle fibres.

Hence, the contraction process is initiated with teh relaease of calcium from sarcoplasmic reticulum.

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Plants retain their leaves year round.?

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It all depends on the species, some lose all of their leaves for part of the year while others lose their leaves before the next growing season, retaining some during winter or dry periods.

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Which scientist created tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?

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Answer:

Robert Koch

Explanation: He created tests that helped confirm that bacteria and other microorganisms cause a variety of diseases in human beings

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Which of the following statements is NOT true?

olga2289 [7]

<h2>Which of the following statements is NOT true?</h2>

<h3>Answer:</h3>

 D. Variations in gene frequencies within population in genetic drift occur by chance.

CaryOnLearning 
Pls mark me as brainliest^-^

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When conducting scientific research, any information that is found must be analyzed to determine its validity. Joel is a firm be

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If your choices are the following:
a. The flu and the common cold are caused by viruses.
b. Viruses are passed by contact between people.
c. Cold and flu season occurs when the weather is cold, so there must be a connection.
d. All of the above excerpts are biased.

Then the statement that is considered to be biased is c. Cold and flu season occurs when the weather is cold, so there must be a connection.

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