The Living World Questions and Answers

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

courses SC BIOL100

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

QUESTIO

Im Acuvity Montex R Take Tes ht take launch jsp course assessment 6 seconds

ue Ise gerie expression STION 4

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