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While doing a pedigree analysis of a royal family from the ancient Mayan empire, you notice that a prince with the genetic disease married a person from outside the royal family without a history of the disease in her family. Of their six children, two have the disease and four are not affected. The prince's mother and father also had this disease. If this disease is controlled by a single gene, then the MOST likely explanation for disease in the children would be that the disease is: dom...

You run a PCR reaction for five cycles starting with a single DNA duplex. Theoretically, how many copies of your sequence would you now have? 8 24 12 16 32 - Answer 32 A new nucleotide can only be added to the _____ end of a growing DNA strand. DNA therefore always grows in the _____ direction. 5′; 5′ to 3′ 3′; 5′ to 3′ 5′; 3′ to 5′ 3′; 3′ to 5′ - Answer 3'; 5' to 3' If you were able to find a drug that could inhibit the reactivat...

Many mutations in receptor kinases that lead to cancer allow the receptor to dimerize and become activated, even in the absence of signaling molecules. An example is a mutant form of the EGF receptor kinase called Her2/neu. An antibody that prevents dimerization of Her2/neu receptor kinases is being tested for its effectiveness in preventing cancer. At which stage does this drug work? It prevents the signaling cell from producing the signal. It prevents the termination of the signal. It pr...

amino acid made up of - Answer alpha carbon, amino group, carboxyl group, side chain, R group peptide bond - Answer covalent bond joining amino acids amino end - Answer The end of a polypeptide chain that has a free amino group. carboxyl end - Answer The end of a polypeptide chain that has a free carboxyl group. Polypeptide - Answer A polymer (chain) of many amino acids linked together by peptide bonds. alpha helix - Answer A spiral shape consti...

The structural diversity of carbon-based molecules is based upon which of the following properties a) the ability of carbon to form four covalent bonds b) the ability of those bonds to rotate freely c) None of these choices is correct. d) All of these choices are correct. e) the orientation of those bonds in the form of a tetrahedron - Answer the orientation of those bonds in the form of a tetrahedron Isomers are defined as: a) atoms with the same number of protons but different...

1 Exam (elaborations) NICET Highway Construction Inspector Level III Practice Exam 1 Questions and Correct Answers. 2 Exam (elaborations) NHI UW Inspection Questions and All Correct Answers. 3 Exam (elaborations) NHI Course 130055 - Day 1 Test Questions and Correct Answers.

Max Interval between above water inspections - Answer 24 Mo Team leaders are required to have - Answer FHWA approved comprehensive bridge inspection course A bridge is defined as - Answer A structure carrying traffic and having a clear span of 20+ ft Two types of bridge inspections by NBIS are - Answer Routine and Special inspections FHWA routine underwater inspections require - Answer 100% Level I inspections Necessary for the galvanic corrosion proc...

Deck - Answer Distributes the traffic loads to the superstructure. Elements include wearing surface, bridge railing, sidewalk, median(?), & expansion joint. Superstructure - Answer Spans a feature and distributes load to the supporting members. Elements include girder, floor beam, stringer, truss, arch, spandrel columns, cables, cross girder, and pin & hanger assemblies. Substructure - Answer Transfers load from the superstructure to the foundation material. Elements ...

3 Primary Bridge Components (in order) - Answer 1. Deck 2. Superstructure 3. Substructure Elements of a Deck - Answer Deck Wearing Surface Bridge Railing Sidewalk Expansion Joint Elements of a Superstructure - Answer Girder Floorbeam Stringer Truss Arch Spandrel Columns Cables Cross Girder Pin & Hanger Assemblies Elements of a Substructure - Answer Columns/Piles Walls Abutments Wingwalls Pier Caps Load Path - Answer Deck Superstructure...

McCarthyism () - Answer McCarthyism is the practice of making accusations of subversion or treason without proper regard for evidence. The term refers to U.S. senator Joseph McCarthy (R-Wisconsin) and has its origins in the period in the United States known as the Second Red Scare, lasting from the late 1940s through the 1950s. It was characterized by heightened political repression and a campaign spreading fear of communist influence on American institutions and of espionage by Soviet age...

Dead Load, Primary Live Load, Secondary Live Load - Answer The three principal categories of bridge loadings dead load - Answer a static load due to the weight of the structure itself dead load types - Answer Initial and Superimposed Initial Dead Load - Answer Loads before concrete deck is hardened Superimposed Dead Load - Answer Loads applied after concrete deck is hardened Primary Live Load - Answer Moving Vehicular Loads Standard Vehicular...

Elements of a Channel (List): - Answer Channel Streambed Embankments Stream FLow Freeboard Floodplain Hydraulic Opening Hydraulic Control Structures Channel (definition): - Answer The well-defined depression, which contains and guides stream flow during normal flow conditions Streambed (definition): - Answer The bottom or floor of the Channel Streamflow (definition): - Answer The water, suspended particles, chemicals, and any debris moving through the chan...

Clacking - Answer the sound of delaminated concrete Pinging - Answer the sound of "sound" concrete Where are shear key joints? - Answer between pre-cast deck panels Where can you find anchorage zones? - Answer precast deck tie rods flexure cracks are primarily what direction compared to the primary reinforcement? - Answer perpendicular Main inspection area for FRP bridges? - Answer Joints Assembly joint without seal- sliding plate - Ans...

Which of the following bridge collapses prompted Congress to mandate the National Bridge Inspection Program? - Answer Silver Bridge Collapse Which of the following inventory items can be found in the NBI database? - Answer a) Identification b) structure type and materials c) Condition d) Load rating and posting e) Appraisal Which of the following is the responsibility of a bridge inspection team? - Answer a) Maintaining public safety and confidence b) Protecting the publi...

Which of the following bridge collapses prompted Congress to mandate the National Bridge Inspection Program? - Answer Silver Bridge Collapse Which of the following inventory items can be found in the NBI database? - Answer a) Identification b) structure type and materials c) Condition d) Load rating and posting e) Appraisal Which of the following is the responsibility of a bridge inspection team? - Answer a) Maintaining public safety and confidence b) Protecting the publi...

Silver Bridge 1967 - Answer eye bar chain suspension bridge, unstable internal crack in eye bar, bridge not maintained well, research began on redundancy, fatigue and failure from this, NBIS Mianus River Bridge - Answer pin and hanger was cracked and worsened due to fatigue, pin separated from hanger, FHWA published " inspection of fracture critical bridge members Daniel W. Hoan Memorial Bridge - Answer triaxial constraint ending in brittle fracture, two main girders w...

Orthotropic Deck - Answer Which type of deck uses flat, thin, steel plates stiffened with closely spaced longitudinal steel ribs and a wearing surface? Delamination - Answer What concrete deficiency is caused by corroded rebar or severe overstress and cannot be visually identified? Bearing - Answer What part of the bridge permits longitudinal expansion and contraction? Bridge Condition - Answer Deck, culvert, bridge bearings, and channel are examples of what SNBI...

solid-sawn timber - Answer Generally used in older, shorter span bridges, spanning up to 25 feet Glulam Beams - Answer Typically simple span designs, and can span up to 80 feet Stress-Laminated Timber Deck - Answer Used post-tensioned rods or high strength steel threaded rods Stress-laminated bridge - Answer Simple Spans up to 50 feet and capable of carrying modern highway loads Timber tee beam - Answer Bridge consists of a stress laminated top flange an...

Creep - Answer Gradual, continuing deformation due to constant stress below yield strength. Fatigue - Answer Tendency to fail at stress below yield stress when subject to cyclical loading. Rolled 'I' beam - Answer flanges and web 1 piece, <36" deep, compact section (no stiffener needed). Build-up I beam - Answer larger shape, welded=new bridges, rivets=older bridges. Physical Properties: Steel - Answer Resists impact & vibration, 0.1%-2.1% ca...

Which of the following are characteristics of a continuous span? - Answer - Span deflects downward when loaded, causing rotation at the supports - Span may deflect upward if adjacent span has more load - shear forces maximum at supports - positive moment greatest at or near midspan - negative moment greatest at intermediate supports Which of the following are characteristics of a cantilever span? - Answer - span deflects downward when loaded, with no rotation at the support -...