Question

1. practice: process of protein synthesis respond to the following based on your reading. question 1 how are dna and rna similar in structure? how are they different in structure? check my answer question 2 what are the three main rna subtypes involved in protein synthesis? what do they do? check my answer question 3 whats a retrovirus, and how does it work? name an example of a retrovirus.

Explanation:

Question 1:

Both DNA and RNA are nucleic acids made of nucleotides. Each nucleotide has a phosphate group, a sugar, and a nitrogen - containing base. The similarity lies in the phosphate - sugar - base structure. The differences are: DNA is double - stranded while RNA is usually single - stranded; the sugar in DNA is deoxyribose and in RNA is ribose; DNA has bases adenine (A), thymine (T), cytosine (C), and guanine (G), while RNA has A, uracil (U), C, and G instead of T.

Question 2:

The three main RNA subtypes in protein synthesis are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA carries the genetic code from DNA to the ribosome. tRNA brings amino acids to the ribosome according to the codons on mRNA. rRNA is a component of the ribosome and helps in the assembly of amino acids into proteins.

Question 3:

A retrovirus is an RNA virus that uses reverse transcriptase to convert its RNA genome into DNA, which can then integrate into the host cell's genome. An example is the Human Immunodeficiency Virus (HIV).

Answer:

Question 1:

Similarities: Both are nucleic acids with phosphate - sugar - base structure. Differences: DNA is double - stranded, has deoxyribose sugar and T; RNA is single - stranded, has ribose sugar and U.

Question 2:

mRNA: Carries genetic code to ribosome. tRNA: Brings amino acids to ribosome. rRNA: Component of ribosome for protein assembly.

Question 3:

A retrovirus is an RNA virus that converts RNA to DNA using reverse transcriptase and integrates into host genome. Example: HIV.