Question

complete the following paragraph on protein synthesis by selecting the term to complete each sentence. dna serves as a template for rna formation and the production of ____. protein synthesis requires __ steps. transcription is the process within the nucleus, whereby the __ is produced. translation occurs in the __. there is one ____ for each of the 20 amino acids found in proteins.

Explanation:

First Sentence:

In protein synthesis, DNA is used to make RNA and ultimately proteins, but the options here—wait, no, looking at the options, the first blank: DNA serves as a template for RNA and production of... Wait, maybe I misread. Wait, the options include tRNA, mRNA, ribosomes, etc. Wait, no, the first sentence: "DNA serves as a template for RNA formation and the production of ______". Wait, maybe the intended answer is related to the end product, but the options given: let's check each sentence.

1. First sentence: "DNA serves as a template for RNA formation and the production of ______". Wait, maybe a typo, but looking at the options, maybe it's about the process. Wait, no, let's go step by step.

Second Sentence: "Protein synthesis requires ______ steps." Protein synthesis has two main steps: transcription and translation. So the answer is "two".

Third Sentence: "Transcription is the process within the nucleus, whereby the ______ is produced." Transcription produces mRNA (messenger RNA) from DNA. So the answer is "mRNA".

Fourth Sentence: "Translation occurs in the ______." Translation occurs in ribosomes (cytoplasm, on ribosomes). So the answer is "ribosomes".

Fifth Sentence: "There is one ______ for each of the 20 amino acids found in proteins." tRNA (transfer RNA) carries each amino acid, with one tRNA (or more, but in the options, tRNA is there) for each amino acid. So the answer is "tRNA".

Wait, but the first sentence: "DNA serves as a template for RNA formation and the production of ______". Maybe the first blank is about proteins? But the options don't have proteins. Wait, maybe the first sentence is a mistake, but looking at the options, maybe it's a different approach. Wait, let's re-express each sentence with the correct term:

1. DNA serves as a template for RNA formation and the production of **(maybe a mistake, but let's check the options. Wait, the options are two, ribosomes, four, tRNA, lipids, mRNA. Wait, maybe the first sentence is supposed to be about the end product, but maybe it's a typo. Alternatively, maybe the first blank is "proteins" but it's not in the options. Wait, no, maybe I misread. Let's list the sentences and options:

Sentences:

1. DNA serves as a template for RNA formation and the production of ______.
2. Protein synthesis requires ______ steps.
3. Transcription is the process within the nucleus, whereby the ______ is produced.
4. Translation occurs in the ______.
5. There is one ______ for each of the 20 amino acids found in proteins.

Options (blue boxes): two, ribosomes, four, tRNA, lipids, mRNA (and maybe another, but visible ones: two, ribosomes, four, tRNA, lipids, mRNA).

Now, let's solve each:

1. Protein synthesis: DNA → RNA → protein. But the options don't have protein. Wait, maybe the first sentence is incorrect, but let's proceed with the others.

1. Protein synthesis has two steps: transcription and translation. So "two".

1. Transcription produces mRNA. So "mRNA".

1. Translation occurs in ribosomes (on ribosomes in the cytoplasm). So "ribosomes".

1. tRNA carries each amino acid, so one tRNA (or more, but in options, tRNA) per amino acid. So "tRNA".

Now, the first sentence: maybe a mistake, but if we have to choose from the options, maybe "proteins" is not there, but maybe the first blank is "tRNA"? No, that doesn't make sense. Wait, maybe the first sentence is "DNA serves as a template for RNA formation and the production of ______"—maybe the intended answer is "proteins" but it's not in the options. Alternatively, maybe the first blank is "mRNA"? No, transcription prod…

Answer:

1. (No correct option from given, but assuming a typo)
2. two
3. mRNA
4. ribosomes
5. tRNA

But likely, the first sentence's blank is supposed to be "proteins" but it's missing. However, with the given options, the correct answers for the other blanks are:

• Second blank: two
• Third blank: mRNA
• Fourth blank: ribosomes
• Fifth blank: tRNA

So the completed sentences would be:

• DNA serves as a template for RNA formation and the production of [proteins (not in options, maybe error)].
• Protein synthesis requires two steps.
• Transcription is the process within the nucleus, whereby the mRNA is produced.
• Translation occurs in the ribosomes.
• There is one tRNA for each of the 20 amino acids found in proteins.