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SashulF [63]
3 years ago
7

A scientist is working with methane (CH4) and butane (C4H10). Which statement best compares these chemicals?

Biology
2 answers:
alukav5142 [94]3 years ago
8 0

Answer: Option (c) is the correct answer.

Explanation:

A compound is a substance that consists of same or different type of atoms in a fixed ratio by mass. Whereas an element is a substance that contains same type of atoms.

For example, both CH_{4} and C_{4}H_{10} are compounds that consists of carbon and hydrogen atoms.

In CH_{4} compound, there is only one carbon atom and four hydrogen atoms.

On the other hand, in C_{4}H_{10} compound there are four carbon atoms and ten hydrogen atoms.

Hence, we can conclude that the statement they are compounds made of the same two elements, but each contain different numbers of atoms, best compares the given chemicals.

Elan Coil [88]3 years ago
5 0
They are compounds made of the same two elements, but each contain different numbers of atoms.

CH4 means "One C, and four H's are in this molecule"
C4H10 means "Four C, and ten H's are in this one."

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During translation, nucleotide base triplets (codons) in mRNA are read in sequence in the 5’ → 3’ direction along the mRNA. Amin
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The question is incomplete, it lacks the mRNA sequence. The sequence is as follows:

5′−AUGGCAAGAAAA−3′

The answer is Met-Ala-Arg-Lys

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Gene expression in living organisms involves the process of transcription and translation. Transcription is the synthesis of a complementary strand of mRNA from a DNA template while translation involves using the transcibed mRNA as a template to synthesize amino acid sequence (proteins).

In the RIBOSOME, where the synthesis of protein occurs, the mRNA nuceleotide sequence is read in a group of three nucleotides called CODON. Each codon specifies a particular amino acid. The collection of all codons is the genetic code. Hence, for a specific mRNA sequence that reads 5′−AUGGCAAGAAAA−3′. The nucleotides will be read three at a time starting with AUG which is a codon that encodes METHIONINE.

Next, GCA is a codon that encodes ALANINE

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Finally, AAA is a codon that encodes LYSINE.

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3 years ago
How can prokaryotes live without a nucleus?
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Then the mRNA of the virus will come out of the nucleus because the protein synthesis takes place outside the nucleus and in the cytoplasm. So in the cytoplasm by using host translational machinery the viral mRNA will code for viral proteins. So the correct answer is double-stranded DNA.

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