Biology Questions

Imagine that a pathogen destroys the Killer inhibitory receptor present on Natural Killer Cells NKCS What would be a probable impact on the function of the NKCs O NKCs would always induce cytolysis to bound host cells whether the host cell was infected or not NKCS would be unable to induce cytolysis in infected host cells Host cells would be unable to bind to the NKCs as the receptor for the Common Molecule would be absent Host cells would target the NKCs for cytolysis

Question 19 You find that a gene has been interrupted with a new piece of self contained DNA and you notice that the piece of DNA is missing along with a part of the originally interrupted gene This must be due to Transformation O Transposon Conjugation Transduction

Organisms living together where one is harmed are most likely in a O Beneficial Mutualistic O Parasitic Commensal symbiosis

A vaccine based on using a crippled but living pathogen is known as Live crippled Specific antigen O Specific pathogen

The sticky ends of the molecule below suggest that this molecule was cut by C O a reverse transcriptase O a DNA polymerase O a restriction enzyme a ligase LACE

Question 3 P You are asked to measure out 500 L of medicine for a patient but the measuring have is only marked in mL You correctly fill the cup to mL

Select ALL the correct answers Some individuals of a particular species of sea bird underwent a genetic mutation that resulted in larger beaks The larger size of beaks helped these birds to break open clams and other mollusks for food It also helped them defend themselves against predators After many generations almost all of the birds in the population had big beaks For which two reasons did this phenomenon occur natural selection mechanical isolation prezygotic barriers to reproduction high genetic variation in the species

Consider meiosis I and meiosis II Which of the following statements is TRUE Cells at the end of meiosis I are haploid Crossing over happens during meiosis II Meiosis II results in four genetically identical daughter cells To have enough DNA to complete meiosis it is synthesized again between meiosis I and meiosis II

Study the following list 1 Cuba could not make treaties that might limit its independence or give control over any part c territory to a foreign power II The United States maintained a right to intervene in Cuba to keep order or prese independence III Cuba was not to go into debt IV The United States could buy or lease land for naval and coaling stations The items in the list provided are provisions of which of the following The Platt Amendment O The Treaty of Paris

A microorganism that likes to live in tepid soup 24 C would be a an O Mesophile O Psychrophile O Thermophile O Hyperthermophile

Many viruses consist only of a protein coat surrounding a nucleic acid core If you wanted to radioactively label the nucleic acids and not the protein you would use radioactives O nitrogen O phosphorous O carbon sulfur

Which of the following statements about mitosis is correct O Mitosis introduces genetic heterogeneity into the offspring O Both prokaryotic and eukaryotic organisms undergo mitosis O During metaphase of mitosis homologous chromosomes pair up in the middle of the cell Mitosis results in two renetically identical daughter cells

The cytoplasmic membrane of the cell is made up primarily of what two types of biological macromolecules proteins Onucleic acids Ophospholipids carbohydrates

Based on the information presented in this lesson all of the following was true of Mexican workers EXCEPT O They had their own independent communities and established churches newspapers schools and social welfare institutions to help their communities O They were often hired by the Southern Pacific and Santa Fe Railroads O They were hired to do agricultural and mining work in the Southwest

How do telomeres affect down syndrome

This white matter is the O Midbrain O Thalamus O Corpus callosum O Medulla oblongata 15

Look at the diagram Based on your own knowledge which choice would best fill in the blank rectangle Millions of East Germans flee to West Berlin Khrushchev threatens to close all roads Kennedy refuses to relent Beginning of the Berlin Airlift Construction of the Berlin Wall

AS IS TO IS TO Which of the following BEST completes the analogy Previous William Van Alen The Woolworth Building Cass Gilbert Empire State Building 00 00 Chrysler Building William F Lamb Oriel Chambers The Woolworth Building Cass Gilbert Chrysler Building

HIV stops antibody production and cytotoxic T cell activation by destroying OT Helper cells O Plasma cells O Dendritic cells O Macrophages

What is a cause of the Cold War O The Soviet Union wanted to spread Its Ideology of communism worldwide which alarmed Americans Both the countries were economically weak The Soviet Union s attempt to promote democracy across nations which was not supported by ti

The unusual formations in this segment of DNA are called dimers Ultraviolet UV radiation from sunlight among other things can damage DNA by causing the formation of thymine dimers Thymine dimer G T T GCT CGA CAA G Ultraviolet light GTA CCAT In this image the presence of ultraviolet light has caused damage to one strand in a molecule of DNA Which statement best reflects the result of this damage 3 of 6 QUESTIONS Replication of the DNA shown will transmit damaged DNA to random

3 24 Which sentence contains transitional words or phrases A We need to be concerned about the environment we need fuel B We need fuel We need to be concerned about the environment C There are many reasons to be concerned about the environment For example we need fuel D There are many reasons to be concerned about the environment

A mutation in gene X overrides the effect of a previous mutation in gene Y and restores the wild type phenotype The mutation in gene X is called a n mutation O neutral O forward O intergenic suppressor intragenic suppressor

Which macromolecule is related to leukaemia Lipids or proteins Explain your reasoning

Study the following map D O A OB and C A Which of the states indicated above were affected by the Wilmot Proviso O A and D C B

Question 3 Points 3 Which of the following statement s is are correct All of the choices O Truman s second term was not as productive as his first term Truman was successful in creating irrigation projects Truman was successful in creating over 810 000 low income housing un

What became true in the 1960 s for most of America during the Vietnam War A People trusted LBJ more than Walter Cronkite B People did not trust Walter Cronkite or LBJ C People trusted Walter Cronkite more than LBJ

Look at the diagram If these arrows represented the trends of education in the United States during the 20th Century how would you fill in the blank Classics O Antiquities O Utilitarian

What are some of the features of the dermal papillae that you observed on this slide and how do those features affect the surface of the skin 0 Word

Which statement below can accurately be made by 16 reviewing the information in the Population Density Table A Great Britain is more densely populated than the United States B Canada is more densely populated than the United States C Australia is more densely populated than the United States Population Density Country Hong Kong China South Korea India Japan Vietnam United Kingdom Germany Italy France Spain Greece North Korea Mexico United States Canada Australia Population Density People Per Square Mile 17 299 1 329 1 046 868 733 702 601 521 319 238 212 211 163 86 10 8

Based on this picture and your own knowledge which retaller first Introduced and profited from the marketing practice shown here Look at this photo NA Aids That Every Woman Appreciates O Bloomingdale s O Marshall Field s department store O Sears and Roebuck

Which of the following result from producers performing photosynthesis Select all correct answers a oxygen is produced b carbon dioxide is transferred back to the atmosphere c energy is transferred from sunlight to consumers d carbon is cycled through the biosphere

Which statement below can accurately be made by 15 reviewing the information ir the Population Density Table A The United States is the most densely populated nation in the world B The United States has room for more people compared to most nations C The United States has an overpopulation issue it must deal with Population Density Country Hong Kong China South Korea India Japan Vietnam United Kingdom Germany Italy France Spain Greece North Korea Mexico United States Canada Australia Population Density People Per Square Mile 17 299 1 329 1 046 868 733 702 601 521 319 238 212 211 163 86 10 8

Which of the following countries was part of the Ottoman Empire A France B United States C Turkey

lichael Dukakis got the m electoral votes from wha ate in the 1988 presiden election lowa New York Oregon Use the electoral map from th 988 presidential election bel to answer the question on th right CALIF 47 IDAHO NEVADA MONTANA 4 UTAH 5 WYOMING 3 COLORADO 8 N DAK 3 S DAK 3 NEBRASKA 5 KANSAS MO

The following statements are true or false If true write T on the answer blank If false correct the statement by writing on the blank the proper word or phrase to replace the one that is underlined 1 The microscope lens may be cleaned with any soft tissue 2 The microscope should be stored with the 4X objective in position over the stage 3 When beginning to focus use the lowest power lens 4 When focusing always focus toward the specimen 5 A coverslip should always be used with wet mounts and the high power oil lens

Who made history as the first African American man to run for president in 1984 A Ronald Reagan B Barack Obama C Gerald Ferrraro D Jesse Jackson

Many in the United States thought it was a mistake to leave Saddam Hussein in control of what part of the Middle East A Iran B Iraq C Kuwait D Yemen

Study this list Andrew Jackson Downing Frederick Law Olmstead Calvert Vaux What do these three men have in common O All three were landscape architects O All three designed New York s Central Park All three designed London s Hyde Park

AS the analogy IS TO IS TO William F Lamb O Chrysler Building William Van Alen Oriel Chambers O Empire State Building Peter Ellis Chrysler Building

The house fly can serve as a mechanical vector of many parasitic pathogens or eggs thereof The terms phoresis and paratenic both can be used to describe a house fly participating in this behavior Use these terms in A SINGLE SENTENCE to describe the relationship a house fly might have with Entamoeba coli

While in Africa these na ve travelers did not proactively prevent mosquitoes from feeding on them Now both are suffering chills due to intermittent fevers every 48 hr but the timing is different Zeke has fevers that subside during the night and give him a break until returning 24 hr later Edgar has fevers that persist for nearly 48 hr giving him virtually no relief between cycles What mosquito genus were they likely bitten by and which causal agents do each have Who is most lucky to have survived Who is the definitive host

By The original uploader was Petri Krahe at English Wkipedia Later vemions were 6 by Cacephony at wikipedia GFDL oploopyleft fidhim or CC BY SA 3 0 gliommesby sa3 0 g via Wikimedia Commons Based on the photo and your own knowledge the Chrysler Building in New York was built in a n design a popular style that flourished throughout the 1930s and into the World War II era Art Nouveau O Art Deco O contemporary

Why don t mosquitoes transmit Malaria

What was the impact of public transportation in city life O People were able to choose different types of jobs O It allowed cities to connect to other cities O Cities annexed suburban developments

The United States protected this man during the fall of the Soviet Union in 1989 A George H W Bush B Yuri Andropov C Mikhail Gorbachev

When American writer John Perry Barlow wrote of the literal and genuinely religious leap of faith embodied in this structure it required of its builders faith in their ability to control technology he was writing about the Empire State Building O Chrysler Building

Study the list Frederick Law Olmsted Calvert Vaux These two men are most associated with O Empire State Building O Hyde Park

In Virginia water has eroded underground areas of limestone to form large 2 points caves and caverns The water must have carbon dioxide to wear away the limestone The carbon dioxide is necessary to raise the temperature of the water so it will flow even in the winter reduce friction and make the water flow faster form a weak acid in the water that reacts with the limestone to dissolve it allow bacteria to grow and attack the limestone

Located in New York harbor the nation s busiest immigration station on the eastern coast of the United States from 1892 1954 was O Ellis Island O Castle Garden Immigration Depot O Angel Island