Question

66. _________________________________________________________ The complete functional name for the enzyme that is commonly called RNApoly is _____.

67._________________________________________________________ The enzymes associated with telomere maintenance, are responsible for producing DNA from a RNA template and are associated with retroviruses are technically called ____.

68._________________________________________________________There is a term that is used to express the fact that if a RNA molecule forms a hairpin the two portions of the nucleic acid chains that make up hairpin have 3'-5' ends arranged in opposite directions. That term is __.

69.__________________________________________________________ RNA molecules located in both snRNPs and Ribosomes are able to catalyze chemical reactions and because of this functional ability they are called ___.

70.__________________________________________________________ Energy storage molecules that are required for insertion of the initiator tRNA into the initiation complex and are needed for translocation during the process of translation.

71.________________________________  __________________________ IREbp are in their active form when iron levels within the cell are ___ and at this time you would expect to see the IREbp attached to the ___ UTR of ferritin mRNA. (two words needed)

72.__________________________________________________________ The multi-component structure that is composed of snRNPs and is instrumental in eukaryotic mRNA maturation is called a ___ .

73.__________________________________________________________ The term used to describe that the genetic code has more than one codon "coding for" some of the amino acids.

74.__________________________________________________________ This is the full name of the protein (enzyme) that is responsible for the attachment of the appropriate amino acid to its own tRNA.

75.___________________________________________________________  A ___ is a structure seen in eukaryotes that is composed of multiple rRNA molecules, a large number of proteins, has a region for binding to m⁷G_pppsequence, and it is responsible for carrying out the process of translation.

76._______________________________________ _______________________________ The type of operon that is expected to be associated with the regulation of an anabolic process, has an inactive repressor initially, and utilizes a metabolic product as a corepressor is called a(n) ___ operon.

77._______________________________________________________________________ The polypeptide mutation that occurs whenever a change results in a polypeptide of correct length but with at least one altered amino acid is called a ____ mutation.

78._______________________________________________________________________ One of the means of global gene regulation is the grouping of a set of separate genes or operons that contain the same regulatory sequence and that are controlled by a single type of regulatory protein that are collectively called a ___.

Answer 1

66. RNA polymerase

RNA polymerase is the name given to a class of enzymes which in vivo synthesize RNA molecules using double-stranded DNA as a template.

67. Telomerase

Telomerase, also called terminal transferase, is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres.

68. Antiparallel

A term applied to two molecules that are side by side but run in opposite directions.

69. Ribozymes

A ribozyme is a ribonucleic acid (RNA) enzyme that catalyzes a chemical reaction. The ribozyme catalyses specific reactions in a similar way to that of protein enzymes.

70. ATP

71.

72. Spliceosome

73. Degenerate

The genetic code is degenerate because there are many instances in which different codons specify the same amino acid.

74. aminoacyl t RNA synthetase

An aminoacyl-tRNA synthetase (aaRS or ARS), also called RNA-ligase, is an enzyme that attaches the appropriate amino acid onto its tRNA.

75.

76.  negatively controlled inducible operon

77. Point mutation

78. Operator