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solniwko [45]
3 years ago
10

Four scientists investigated passive smoking. The table below shows the number of people each scientist studied from each group.

Biology
1 answer:
marta [7]3 years ago
6 0
Peter, because he has the most
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What are the variables of this question:do plants grow better im sunlight or artificial light
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Plant's grow better in sunlight its a given fact. artificial is limited and costs quite a bit while sunlight has no cost and is what plants naturally use to grow.

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Help.... brainliest!!<br> What is the characteristic of the object shown below?
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it is classified as a cell

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_____ is the main source of chemical energy that drives all cellular work and belongs to the class of organic molecules known as
VashaNatasha [74]

Answer;

-ATP; Nuceotide.

ATP is the main source of chemical energy that drives all cellular work and belongs to the class of organic molecules known as Nucleotide.

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-ATP, adenosine triphosphate, is a high energy molecule, powers (drives) nearly all forms of cellular work. Hydrolysis of ATP releases energy by transferring its third phosphate from ATP to some other molecule in a process called phosphorylation.

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3 years ago
Which of the following is not true of a codon?
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It extends from one end of a tRNA molecule. (Ans. C)

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Codon or genetic code, the sequence of nucleotides in DNA and RNA which determines the amino acid sequence of the proteins. The linear sequence of nucleotides present in DNA has the information for protein sequence, proteins are not directly synthesized from DNA, an mRNA molecule is synthesized from DNA and complete the formation of proteins.

RNA is composed of 4 nucleotides adenine, cytosine, uracil and guanine. Three nucleotides constitute a unite which is called Codon, which helping to codes the amino acids. Example AUG is a codon that specifies the amino acid methionine. It is found at the starting of every mRNA and indicates the start of a protein.

There are 64 codons, 3 of them are not coding for an amino acid but indicate the end of the protein, the remaining 61 codons specify the 20 amino acids which help in makeup the proteins.  

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