Exam 9: From Dna to Protein

MATCHING Choose the best matching element. a.deciphered the mRNA code words b.RNA-directed synthesis of polypeptide chains c.sites at which RNA polymerases can bind and initiate transcription d.binds to small subunit platform of a ribosome e.guided and catalyzed by RNA polymerases f.polypeptide chain elongation proceeds independently at each body in this cluster g.discovered transposons h.a tRNA triplet opposite a codon i.a set of three nucleotides -codon

Classification.You will need a genetic code table to answer the following.The following statements refer to the five RNA codons listed below; match them appropriately. a.AUG b.UAA c.UUU d.UUA e.AAA -A DNA codon of ATT is complementary to this RNA codon.

The wobble effect pertains to the matching of

Which of the following carries amino acids to ribosomes, where amino acids are linked into the primary structure of a polypeptide?

The concepts of transcription and translation have been said to form the 'central dogma' of molecular biology.Is this a fitting description?

What does the fact that all organisms use essentially the same genetic code suggest about the origin of life?

MATCHING Choose the best matching element. a.deciphered the mRNA code words b.RNA-directed synthesis of polypeptide chains c.sites at which RNA polymerases can bind and initiate transcription d.binds to small subunit platform of a ribosome e.guided and catalyzed by RNA polymerases f.polypeptide chain elongation proceeds independently at each body in this cluster g.discovered transposons h.a tRNA triplet opposite a codon i.a set of three nucleotides -messenger RNA

Assume alternative splicing can generate all permutations and combination.How many proteins could a gene with three exons and two introns generate?

The difference between normal and sickle-cell hemoglobin is based upon

Frameshift mutations may involve

MATCHING Choose the best matching element. a.deciphered the mRNA code words b.RNA-directed synthesis of polypeptide chains c.sites at which RNA polymerases can bind and initiate transcription d.binds to small subunit platform of a ribosome e.guided and catalyzed by RNA polymerases f.polypeptide chain elongation proceeds independently at each body in this cluster g.discovered transposons h.a tRNA triplet opposite a codon i.a set of three nucleotides -anticodon

Which event may occur in all viruses, prokaryotes, and eukaryotes?

Mutations can be

AUGCGUCCA The sequence of amino acids specified by this mRNA is

-The helix structure on the right of the above figure represents

The process of gene expression includes two steps: __________ and __________.

-In this depiction of transcription, the ____ strand is ____ because it ____.

Transcription starts at a region of DNA called a(n)

If the DNA nucleotides read ATG-CGT-GAC, the amino acid sequence of the resulting polypeptide would be

All of the different kinds of RNA are transcribed in the