What is the control center of a cell?

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Answer 1

Answer: The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression the nucleus is, therefore, the control center of the cell.

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Question 12After many cell divisions, a segment of DNA has more base pairs than it originally did. Explain what has happened.

Can you please help me with this, that'd be great! Thanks!

Answers

The correct answer is insertion mutation.

The mutation is defined as the change in the DNA (deoxyribonucleic acid) sequences. The insertion mutation is a type of mutation, in which the insertion of the nucleotides takes place in the DNA sequences, resulting in an increase in the total number of base pairs in the DNA sequence. So, the insertion mutation has resulted in the increase in the base pairs in this case.

Its because they keep replicating say you start 0ff with then it will keep doubling for example 2,4,8,16,32,64,128,256,512,1024 hope this helps

What is the prepositions phrases for chica the cat ran away from the dog

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"From the dog" is the prepositional phrase since it begins with the preposition "from" followed by the noun phrase "the dog" .

Define and give three examples of a population

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3. Populations and samples ... Although a statistician should clearly define the population he or she is dealing with, they may not be able to enumerate it exactly. For instance, in ordinary ... For taking asample from a long list a compromise between strict theory and practicalities is known as a systematic random sample.

During the process of ______ , a molecule such as glucose must use a protein channel to cross through a cell membrane.

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Facilitated diffusion

Organisms must be able to adapt to a changing external and internal environment. An organism's ability to maintain a stable internal environment is known as homeostasis. How does a cell's membrane help an organism maintain homeostasis?

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Answer:

Cell membranes control the substances that enter or leave cells.

Explanation:

Without a cell membrane the organism will be unprotected and the homeostasis will die.

In the nineteenth century, what was known about atoms? A. The atom determines the chemical property of an element. B. The exact structure of all atoms C. The half-life of all atoms D. The number of atoms that exist in the world is increasing.

Answers

Answer:

A. The atom determines the chemical property of an element.

Explanation:

An atom is made up protons, electrons and neutrons. The atoms valance electrons determine its chemical properties. For example, Na has 1 valance electron. Na just like all other alkali elements lose that one outermost electron to form a cation thus gaining an octet. Because of the one valance electron, alkali elements show metallic property and other chemical properties. If an atom has an unstable nucleus then it becomes radioactive.

Answer:

A. The atom determines the chemical property of an element.

Explanation:

Other Questions

Which one of the following statements is accurate? A. Electron microscopes focus beams of light using magnetic fields. B. Compound light microscopes utilize lenses and beams of electrons to produce images. C. False colors are added to images to make some structures more noticeable. D. Electron microscopes are tools used to study living organisms when they're alive.

Where are most of the nonmetals found in the periodic table? A.at the top B.on the right side C.in the bottom left corner D.on the left side

What are decomposers classified as in an ecosystem?

3. What is the chance that a human child will be born male?100%25%75%50%