The Living World Questions and Answers

Toluene formaldehyde and dibutyl phthalate O cause headaches dizziness numbness among other effects upon chronic and repetitiv exposure in nail salon workers O are often referred to as the Return of Agent Orange O Are chemicals that were banned from use in cosmetics by the FDA in the 1970s O all answers are correct O Are the chemical components that make up Napalm

According to Drs Nitin and Amisha Ahuja contemporary scientific knowledge about the microbiome and therapeutic importance of microorganisms may be traced back to what scie theory O Cleanliness Theory O Fecal Microbiota Theory O Industrial Waste Theory O Plasma Theory O Autointoxication Theory

Authors of Plastic People Guthman Mansfield suggest that epi genetics research reveals intensified O no answer is correct O Public desire for accessible collective health care policies implemented for the benefit of all O Individualized middle class desire for increased control over personal health optimization Increased cupcake consumption since health is genetically determined and out of our control anyway

17 SWYK DIST Individuals can have spe True

Match the Terminology with their corresponding Definition Natural Selection Competition Overproduction Camouflage Extinction

2 Changes Over Time CheckPoint population of land snails colonized a field of light colored grasses At first th d another with yellow bands on their shells as shown in the figure below A SNAIL SHELL WIT YELLOW BANDS

Water is called the because it can dissolve anything except A versatile solvent C lipids B universal solvent D diamond

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What is a fusion protein A trimeric protein where the polypeptides are covalently fused or held together S S bonds A protein made up of coding sequence from two different proteins A human protein fused to bacterial DNA A fluorescent protein that can be purified by using affinity chromatography A fluorescent protein that can localize to the nucleus

Recombinant DNA is O DNA from a foreign unknown species O DNA synthesized using radioactive nucleotides O Genetic engineering of DNA sequences from bacterial and human origins ODNA that has been cleaved with restriction endonucleases ODNA that encodes one or more antibiotic resistance genes DNA engineered to bring together sequences that would not be found together in nature

Which of the following deoxyoligonucleotides will hybridize with the following sequence 5 AGACTGGTC 3 5 CTCATTGAG 3 5 GACCAGTCT 3 5 GAGTCAACT 3 5 TCTGACCAG 3 5 TCTGGATCT 3

Question 10 The compound that is an orga triclosan

Answers A E A Electronic thermometer B Telephone C Defibrillator D Electronic medical record all human technology interface Select all that apply

How do you define biotic and abiotic A Biotic means predator and abiotic means prey B Biotic means living and abiotic means nonliving C Biotic means chemical and abiotic means physical Jh D Biotic means unicellular and abiotic means multicellular L www SE VISCABLE SE 1992 EINW WORD TENTIE BEAN HE TELE 1692 PER 1959 SEEP

The best way to control airborne contaminants is to use an exhaust ventilation system Select one True O False

Laser beam should not be at eye level while sitting or standing Select one O True O False

Select one O True O False Question 21 1 pts If you must enter the Nominal Hazard Zone the best thing you can do to protect yourself from potential hazardous exposure is to wear personal protective equipment Select one

Only high power laser devices require protective housing Select one O True O False

equipment Select one O True O False Question 17 The principal investigator must notify the LSO after purchasing any class 3b or 4 laser equipment Select one 1 pts

The only control measure required for Classes 1 2 and 3a is administrative Select one O True O False

Select one O True O False Question 19 1 pts To help ensure that you are not exposed to high voltage when the laser power is off power supplies should be equipped with grounding and discharging strap Select one

laser Select one O True O False Question 13 1 pts Each class of laser have specialized signage requirements Select one True

NHZ is the area where the exposure hazard is very low Select one True False

Can the same Personal protective equipment be used for the various laser classes Select one O True O False

The three main control measures are Engineering Control Administrative Controls and Shielding Select one O True O False

Nd YAG is an example of a liquid medium laser Select one O True O False

Laser is the acronym for Light Amplification by Standard Emission of Radiation Select one O True O False

Trypsin is a pH indicator often added to cell media True O False

Label the 5 reagents necessary for a successful Polymerase Chain Reaction and their function

What are the three steps to a cycle of a PCR reaction and what occurs in these steps

Describe 5 key techniques you utilized to reduce the risk of contamination of your mammalian culture cells

What are three things we added to rabbit muscle tissue that are necessary for muscle contraction What role does each factor play

O any type of microorganism bacteria O large parasites molds viruses Question 10 A high hematocrit might indicate anemia polycythemia excessive production of platelets inadequate red blood cell production

n What is true of the proteins illustrated in the diagram below

ion 1 ret ered ked out of Flag question Identify the sites of lagging strand synthesis 5 A

2 Consider a firm with the following Output and Marginal Product Number of Output Value of worker Units employed 0 1 2 3 4 5 6 7 8 9 0 14 Marginal Products Units 21 25 24 22 20 18 14 Average Product Units Marginal Product GhC 60 Assuming the price of output is 5GHC a Fill in the blanks in the above table for the firm 4 Marks Value of Average Product GhC b What is the optimal level of employment when the wage rate for a worker is 100 GHC 3 Marks c Assuming the firm is a discriminatory firm with a positive discrimination coefficient d 0 5 against tribe A If the market wage is 100 GHC explain the condition under which the firm will hire a worker from tribe 4 Marks d If in January 2016 the wage rate for doctors was 4000 GHC and 1200 doctors were working in the public sector in Ghana and in November government reduces the wage of doctors to 3800 GHC and 400 doctors were remaining in the public sector Calculate the labour supply elasticity for doctors in the public sector Is labour supply for doctors elastic 4 Magira

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QUESTION 2 Which of the following represent situations in wh O Repairing liver damage that was caused by a O The growth of a small child O O Reproduction of single celled eukaryotic orga Replacement of skin cells that are periodicall All of the

5 Triploid plants are typically seedless while tetraploid plants often produce seeds Explain why this is true

4 In Chapter 4 we saw that the small probability for error during replication can result in mutations that change the function of a gene Certain mutations in the E coli rpsL gene result in the phenotype of resistance to the antibiotic streptomycin Similarly specific mutations in the rpos gene yield rifampicin resistant varieties The antibiotics have distinct mechanisms of action so that a bacterial cell might be resistant to one both or neither When 108 of a certain strain of mismatch repair deficient E coli bacteria from a rapidly dividing culture are plated onto nutrient agar plates containing streptomycin 119 resistant colonies each arising from a single cell are obtained When the same number of bacteria are plated out on plates containing rifampicin 35 colonies are counted What is the probability of obtaining a colony resistant to both streptomycin and rifampicin

3 Developing intuition In certain games that use dice rolling doubles both dice show the same number gives an advantage to the player such as an extra turn In any given roll what is the probability of rolling doubles of any number

If each normal body cell of a human contains forty six chromosomes then the number of chromosomes in a human egg will be O 92 23 24

schematic can the jellyfish with DNA ligase so that its mbled and lacks the GFP gen

During the COVID 19 many health professionals are on the front lines In terms of social support and networks health professionals such as your doctor are considered in which of your networks O O informal network formal helping network

Marge thinks that she is a super history buff and she ll ace the exam In fact she is so confident that she doesn t study with her classmates She ends up getting a D on her exam What is this an example of limitations of low self efficacy limitations of high self efficacy assumptions of high self efficacy

Intensity is how strong connections and relationships versus density is how many connections and relationships are in a given area in someone s network O True False

Form chemical bonds with the electrons of other ator A Pair up with neutrons to become part of the atomic ma B 7 What can valence electrons do 3 C Dance and sing the periodic table song 5 C An electron in the first orbital closest to the nucle B An electron that became a proton through 139 An electron in an atom s outermost enegueus A 6 What is a valence electron C It is not important and just a random number It tells how many bonds the atom can form A It tells how many protons are in the nucleus 1 rectitude 2 guilelessness 3 obstreperous 4 rudiments 5 mausoleum 6 articulate 7 contemporary 8 cantankerous 1 A lawyer must be acquitted 2 You must study the to play 3 The children were so leave the theatre level clear decay What does the number of valence electrons that a A No valence electrons Except for helium atoms atoms tend to gain lose or e B four Class ng arrangement of electrons of electron energy fields valence electrons SSON 2 CHAPTERS 9 11 Vocabulary Draw a line from each word on the left to its definition on the right Then use the numbered words to fill in the blanks in the sentences below agram shows eutron u TO KILL A MOCKINGBIRD a of the current age b first principles of a subject c sincerity straightforwardness d large magnificent tomb e unruly boisterous f quarrelsome grouchy g moral virtue rightness of principle h able to put one s thoughts into words pates in chemical pond to convince a jury that his client should be electron of football before you go out on the field that the management asked them to 4 The nation honored the general s military victories after his death by building a n in his honor furniture is usually less ornate than furniture that was popular in the early 1900s 6 Lack of sleep will cause even the most mild mannered person to become 7 After twenty years of unselfish service to his church no one would doubt the of his motives 8 It is refreshing to observe the of young children

5 5 points eBook Itranscript Microbial Antagonism Please choose the statement that best describes the benefits of micr Multiple Choice Microbial antagonism refers to the mechanisms by which a pa

The image below is an example of the results that you could expect to see from your gel Each group e g lanes labelled A contains two samples Bl Blue and Br Brown 4 Interpret the results below as being homozygous blue homozygous brown or heterozygous A B BI Br Bl Br LMW 250 200 150 C D BI Br BI Br A B C D

100 zizyloso FOR A 591 Laboratory 5 Are you a hidden heterozygote A PCR analysis part 2 The sample lane listed as LMW denotes what is known as a Low Molecular Weight marker see Figure 3 This is a commercially available sample set of standard DNA fragments measured in base pairs bp These standards of known size are used to determine the size of your PCR products the DNA fragments you have created by PCR by comparing the position of your bands with the bands of known size 5 Based on the gels above and the image of the LMW marker below extrapolate the size of the Blue and Brown eye colour alleles bp 766 500 350 300 250 200 150 100 75 50 25 Blue eye colour allele size bp Brown eye colour allele size bp Figure 3 Low Molecular Weight DNA Marker New England Biolabs