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muminat
3 years ago
15

Which condoms are useful for reducing your risk for contracting a sexually transmitted infection?

Biology
1 answer:
NeX [460]3 years ago
3 0
He answer is D. both a and b are correct because  lambskin doesn't give you the proper protection that the person 
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2 years ago
1. Describe the structure and function of each of the three types of RNA.
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1.

mRNA - Messenger RNA: Encodes amino acid sequence of a polypeptide.

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rRNA - Ribosomal RNA: With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.

2.

Transcription is the process by which DNA is copied (transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger RNA is formed, with the involvement of RNA polymerase enzymes.

3.

During translation, which is the second major step in gene expression, the mRNA is "read" according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins. Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein.

Explanation:

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