University Of California - San Diego

Econometrics - Answer The branch of economics that develops and uses statistical methods for estimating economic relationships Experimental Data - Answer Data that have been obtained by running a controlled experiment Nonexperimental Data - Answer Data that have not been obtained through a controlled experiment Empirical Analysis - Answer A study that uses data in a formal econometric analysis to test a theory, estimate an economic relationship, or determine the effects of a...

confidence interval - Answer covariance - Answer correlation formula - Answer = Covariance/(std x * std y) simple random sampling - Answer Y1 and Y2 are independently and identically distributed law of large numbers - Answer Y bar becomes a consistent estimator of u (pop mean) when n gets larger and larger Central Limit Theorem - Answer The theory that, as sample size increases, the distribution of sample means of size n, randomly selected, approaches a normal ...

use stata as calculator - Answer di or display help files - Answer help *** strings - Answer words, make sure to put quotation marks example: display "hello world" Check working directory - Answer pwd change working directory - Answer cd "/Users/nellyzerbib/Desktop/ECON POLI 5/data sets/week 2" use college_, replace how to quickly view variables - Answer use describe command how to see data - Answer br or browse to see descriptive stat...

A salt (NaCl) crystal is sitting in a glass of water at room temperature. It's shape is changing, but not it's volume. Which of the following are true? A) The salt is dissolving from and crystallizing onto the crystal at the same rate B) sodium and chloride ions are constantly attaching to and detaching from the crystal C) sodium and chloride ions in the salt crystal are jiggling in accordance with the temperature of the crystal D) because the volume of the salt crystal is not changing...

gene - Answer a portion of DNA that is transcribed to express its encoded genetic information or transform it into a more useful functional form (storage --> function) What does the mRNA (RNA transcript) include? - Answer the mRNA includes everything needed to dictate amino acid sequence What do most RNA transcripts (mRNA) correspond to? - Answer Corresponds to a single functional unit (e.g. polypeptide) What does the launch of gene transcription require? - Answer require...

____ refers to the spatial arrangement and interactions of subunits in a multi-subunit (multi-chain) structure - Answer Quaternary structure _____: Alpha helices, beta sheets, and turns are examples of this type of structure - Answer Secondary structure According to convention, the ____ terminus is drawn on the left side of a peptide - Answer Amino ___: This amino acid residue disrupts the alpha helix because its side chain contains a unique ring structure that restricts bond r...

What would happen if the phosphoinositide 3-kinase enzyme disappeared from the system above? (TRUE/FALSE) a) IRS-1 would still bind to the insulin receptor. b) Akt would still be activated. c) Insulin would not interact with the receptor. d) The cell would become insulin-resistant. e) Phosphatidylinositol 4,5-bisphosphate would not be converted into to phosphatidylinositol 3,4,5-triphosphate. f) Receptor dimerization would be inhibited. - Answer a) TRUE b) FALSE c) FALSE d) TRUE ...

The conversion of ribose-1-phosphate to guanosine-5'-triphosphate via the salvage pathway would require the activity of several enzymes. Choose the answer that lists them in the order that they would act in this pathway. A. PRPP synthetase; phosphopentomutase; kinase; kinase; phosphoriboxyl transferase B. phosphopentomutase; phosphoriboxyl transferase; kinase; PRPP synthetase; kinase C. PRPP synthetase; phosphoriboxyl transferase; phosphopentomutase; kinase; kinase D. phosphopentomutase; ...

Into what two groups are proteins usually classified into based on tertiary structure? What are the general characteristics of those two groups? - Answer Fibrous proteins and globular proteins; fibrous proteins have a single type of repeating secondary structure and form long, filamentous strands; globular proteins are compact, complex and often contain many secondary structure elements What are the major themes of fibrous protein tertiary structure? - Answer 1. single repeating seconda...

T/F: According to the module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. - Answer false macromolecule >5,000 g/mol T/F: Biomolecules can have two or more different functional groups. - Answer true T/F: The following group is an amine. C2H5NH2 - Answer true T/F: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of digesting macromolecules. - Answer false peroxisomes degrade dangerous/hazardous molecules, ...