Please answer the following questions A sequence of three nucleotides (specially

Question

Please answer the following questions

A sequence of three nucleotides (specially the bases) called a codon is found on what molecule? Select one: a. DNA b. mRNA c. tRNA d. rRNA e. uRNA DNA structure is described as a twisted ladder (or helix). Imagine you are climbing a DNA molecule, just as if you were climbing a ladder. What parts of a nucleotide would you be stepping on as you climb? (What are the rungs of the DNA molecule made of) Select one: a. the sugars (deoxyribose) b. the phosphates c. the bases d. sugars and phosphates e. water DNA: T A C A T A G C C T A G C A T Select one: a. ATGTATCGGATCGTA b. ATGCGCTAAGCTACG c. AUGUAUCGGAUCGUA d. AUGAUACGGUACGAU e. UAGUTUCGGUTGCUT Use the mRNA table from your book or lab manual to decipher the correct sequence of amino acids this strip of mRNA (answer from above question) would code for, reading from left to right on the mRNA strand. Select one: a. methionine, tyrosine, arginine, isoleucine, valine b. tyrosine, isoleucine, arginine, tyrosine, valine c. methionine, valine, tyrosine, arginine, isoleucine d. methionine, cysteine, methionine, glutamine, proline e. serine, proline, cysteine, tyrosine, valine. How is the genetic information encoded in DNA? Select one: a. In the sequence of the nucleotides b. In the number of the nucleotides. c. In the length of the molecule d. In the sugar and phosphates e. There is no genetic information in DNA

Explanation / Answer

1. b. mRNA (codons are groups of three nucleotides that code for one amino acid, and amino acids are produced with mRNA as template)

2. c. the bases

3. c. AUGUAUCGGAUCGUA (thymine is repaced by uracil in RNA)

4. a. Methionine, tyrosine, arginine, isoleucine, valine

5. a. in the sequence of the nucleotides

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---