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Drupady [299]
4 years ago
12

Which of the following statements is true of ribosomes?

Biology
1 answer:
Delvig [45]4 years ago
7 0

Answer: A) They are the site of protein synthesis.

Explanation:

Ribosomes are small round organelles attached to the endoplasmic reticulum in cells, and serve as site of protein synthesis. This is possible because the transfer RNA assembles amino acids to form polypeptide chains right in the ribosomes.

Thus, ribosomes are site of protein synthesis

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A scientist makes an image of all of a person's chromosomes. What
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She is using Karyotyping

Explanation:

A karyotype is the number and visual appearance of the chromosomes in the cell nuclei of an organism or species.

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What does the presence of homologous structures in different organisms suggest?
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The answer is “common ancestry”

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A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the:
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Answer:

A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the: SYNAPSE

Explanation:

A NEURON(or nerve cell) has 3 parts:

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3. The cell body

A SYNAPSE is an area where the dendrites of one neuron communicates with the axon of another neuron.

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Why have improvements in microscopes over time resulted in revisions in the cell theory? They have revealed new information abou
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They have revealed new information about cell structure and processes.

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-Most microscopes use lenses to magnify the image of an object by focusing light or electrons.

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The brains of people who suffer from depression tend to have low levels of
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they have lower levels of the neurotransmitter serotonin

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