TATA-Box Studienführer, Klassennotizen & Zusammenfassungen

Ribozymes - ANSWER RNA molecules that function as enzymes Primary transcript - ANSWER the initial RNA transcript from any gene, including those specifying RNA that is not translated into a protein mRNA - ANSWER an RNA molecule that carries a genetic message from the DNA to the protein-synthesizing machinery of the cell template strand - ANSWER One of the two DNA strands (out of the two) that gets transcribed-- it provides the pattern or template for the sequence of nucleotides in an RNA...

Bioengernetics - Answer-How energy flows through organisms. ATP - Answer-Used for mechanical, transport, and chemical work. ATP is also an RNA nucleotide. Mechanical Work - Answer-Energy used in motor proteins and muscle cells during contractions. Transport Work - Answer-Energy used to move substances against their gradient. Chemical Work - Answer-Energy used to convey polymers into monomers. Gibs Free Energy - Answer-Portion of a systems energy that can preform work when temperature and p...

ASCP Molecular Biology Exam Prep Questions and Answers Graded A Pyrimidine one carbon ring Cytosine, Thymine, Uracil Purine two carbon rings Adenine, Guanine How are nucleotides joined together? condensation What does mRNA do? carries code out of cell. code for protein structure. DNA to ribosomes end of transcription start of translation What does tRNA do? decodes mRNA. Matches amino acids to mRNA code. Protein synthesis What does rRNA do? part of ribosome structure most abundant RNA coordi...

GENE -ANSWER a segment of DNA that is used to make a RNA molecule or a polypeptide TRANSCRIPTION -ANSWER synthesizing RNA from a DNA template PROTEIN ENCODING GENES -ANSWER carry the information from the amino acid sequence of a polypeptide mRNA -ANSWER the initial product of transcription; a temporary copy of a gene that contains information to make a polypeptide DNA REPLICATION -ANSWER making DNA copies that are transmitted from cell to cell and from parent to offspring POLYPEPT...

BI 213 midterm 2 practice exam 79 Questions with Verified Answers What is the purpose of the TATA box found in eukaryotic promoters? A) It serves as a termination signal for RNA polymerase B) It sets the translation reading frame of the mRNA C) RNA polymerase II binds directly to the TATA box to initiate transcription D) It binds the first Met-tRNA for translation of the mRNA E) It is the binding site for general transcription factors that recruit RNA polymerase - CORRECT ANSWER E ...

RNAS-C Practice Exam 1|49 Questions with Verified Answers What type of RNA specifies the amino acid sequence of a particular protein? a. miRNA b. tRNA c. mRNA d. rRNA e. Both c and d are correct answers. - CORRECT ANSWER mRNA A nucleic acid is a. a polymer of nucleotides. b. hydrophobic. c. linked to an amino acid via a peptide bond. d. a form of energy storage in the cell. e. linked to other nucleic acids by covalent bonds between bases. - CORRECT ANSWER A polymer of nucleot...

An Ames test of a compound suspected to be a mutagen was examined before and after incubation with rat liver extract. Based on the results shown, what do you conclude? correct answers Compound is mutagenic without liver enzymes and this activity is further enhanced by liver enzymes Lynch syndrome is a human genetic disease characterized by ~100-fold higher incidence of colon cancer in men and women - and uterine cancer in women - by the age 50, as compared to the general population. Which sta...

How did evidence from the study of metabolic defects contribute to the fundamental relationship between genes and proteins? - ANSWER -Garrod suggested that genes dictate phenotypes through enzymes that catalyze specific chemical reactions -Symptoms of an inherited disease reflected inability to synthesize a certain enzyme. -Linking genes to enzymes required understanding that cells synthesize and degrade molecules in a series of steps called the metabolic pathway. Describe the experiment by...

Dipole Moment - ANSWER Partial negative and partial positive charge What causes surface tension? - ANSWER Hydrogen bonding Hydrophilic - ANSWER "water loving" Hydrophobic - ANSWER "water fearing" Hydration Shell - ANSWER Water surrounding the ions Diffusion - ANSWER Movement of ions from high to low concentrations Osmosis - ANSWER Diffusion of water Amphipathic - ANSWER "both loving" Characteristics of the head group - ANSWER Hydrophilic, charged, phosphodiestor bon...

Genetics Exam 3 Practice Test 50 Questions with Verified Answers Gene conversion results from A. Discontinuous replication B. Photoreactivation C. Mismatch repair D. Gap Repair E. C and D - CORRECT ANSWER E. C and D The picture below is two Holliday junctions in a pair of DNA molecules undergoing recombination Breakage and rejoining of the strands indicated by the arrows () and () results in crossover. A. 1 and 2 B. 2 and 3 C. 3 and 4 - CORRECT ANSWER B. 2 and 3 In eukaryoti...