Questions

The pairing of homologous chromosomes is called Multiple Choice independent assortment alignment synapsis syngamy crossing over

Multiple Choice one full haploid complement of chromosomes chromosomes identical to those of a sperm cell two copies of each chromosome one copy of each chromosome chromosomes identical to those of an egg cell

Compared to asexual reproduction the main advantage of sexual reproduction is that it Multiple Choice can produce more complex offspring requires less energy increases the genetic diversity of the offspring can produce a greater number of offspring

You are studying meiosis in an organism where 2n 28 How many chromosomes will be present in each cell after meiosis I is complete but before meiosis I begins Multiple Choice 56

Chromosomes exchange genetic information by Multiple Choice crossing over fertilization DNA replication mitosis

Diploid organisms use meiosis to produce haploid cells Meiosis consists of how many rounds of nuclear division Multiple Choice One Two Three Four None of these

Find the length of the arc formed by from 2 to x 8 6 11 y 1x2 8 In

Differentiate the function f t f t tan est etan 8t

1 i Z exp 1 i logz z 0 0 arg z 2 eie 0 0 27 I the indicated power function and C is the unit circle z Ans i 1 e 2

Use logarithmic differentiation or an alternative method to find the derivat 3x y

EXAMPLE 1 Differentiate y In x6 6 SOLUTION To use the Chain Rule we let u x 6 Then y In u so dy dy du dx du dx du dx 1 6 6

Use the t table to fill in the critical t values in the following table Degrees of Freedom 4 23 80 90

2 Based on data collected at a store where tomatoes are sold by the pound the association between the number of tomatoes purchased and the total cost in dollars appeared to be linear The output below shows the regression analysis Dependent variable is Cost R squared 92 4 Variable Coefficient Intercept 0 03 Tomatoes 0 47 a Predict the cost of 12 tomatoes b Interpret the value of R in this context c Interpret the meaning of the slope in this context d Is there any meaningful interpretation of the y intercent in this context

The rectangular coordinates of a point are given Find polar coordinates r e of this point with 0 expressed in radians Let r 0 and 2x 2x 6 6

1 sin 2 tan u

The points 13 1 and 5 8 lie on a line with slope 1 3 4 Find the missing coordinate

Using f x log x what is the x intercept of g x log x 4 Explain your reasoning

Find the length of the curve Arc length x y 3 1

h Given the equation y 6 set up an integral to find the length of path from za to z b and enter the integrand below i e if your integral is L dz enter as your answer rb L Sa 6 dr 49

Macmillan Learning During a routine check of the fluoride content of Gotham City s water supply the given results were obtained from replicate analyses of a single sample 0 709 mg L 0 691 mg L 0 713 mg L 0 687 mg L and 0 717 mg L Determine the mean and 90 confidence interval for the average fluoride concentration in this sample mean 90 confidence interval mg L mg L

4 Dana Bill and Rodrigo are given the following information about ATEA m T 71 TA 8 mZE 35 They are asked to determine the number of triangles that can be formed using these conditions and give a reason for their answer Dana says that two triangles are possible because ATEA is an acute triangle Bill says that only one triangle is possible because whenever the measures of two angles and a non included side are given AAS exactly one triangle is possible Rodrigo says that only one triangle is possible because the length of the fixed leg is less than the length of the swinging leg Which of these students is correct Explain

Solve triangle ABC If an answer does not exist enter DNE Round your answers to one decimal place Below enter your answers so that A is smaller than A2 b 126 c 164 2A1 2C1 a1 X zB 48 A C a2

Identify the domain of the function shown in the graph 10 8 B 4 10 864 2 4 8 8 248 90 10 6 8 10 A 1 1 B 1 x 1 C x is all real numbers D X 1

To save for a new car Trafton invested 7 000 in a savings account that earns 2 5 interest compounded continuously After four years he wants to buy a used car for 8 000 How much money will he need to pay in addition to what is in his savings account Round your answer to the nearest cent Tutorial

Is the graph increasing decreasing or constant 8 B 8 A Constant OB Increasing C Decreasing 4 2 4 2 2 4 B 8 2 4

The water was pumped out of a backyard pond What is the domain of this graph Depth inches 110 100 90 80 88888 70 60 50 40 30 20 10 0 Water Depth 1 2 3 4 5 6 7 8 9 10 11 Time minutes A All real numbers less than or equal to 8 B All positive real numbers C All integers less than or equal to 8

7 State the number of possible triangles that can be formed using the given measuremen a m s 136 PS 14 MP 11 b BC 30 mZA 71 AB 22

P2 Let R be the region in the plane bounded by the curves y z 3 2 Calculate 1 2 x drdy x

Write name date and period Show all sketches and work 1 Solve for m F Round to the nearest tenth F E 107 9 7 G

2 In AABC mZB 57 and AB 10 Which measure of segment AC would cause there to be two possible ways to draw the triangle A 6 B 9 C 12 D 15

12 Find the exact value in radians of the real number y y cos cos 117 6

There are two molecules in the image to the right purple circles and blue blobs The purple circle is being moved via active transport What is this type of active transport called and since active transport requires energy where does the energy to move the purple circle come from Complete sentence s please 1 pt ve

Which of the following have been linked to climate change Extreme weather patterns Rising sea levels All of the answer choices listed are correct Droughts

The following equation describes C6H12O6 602 6CO2 6H2O energy ATP heat photosynthesis fermentation glycolysis cellular respiration

The primary cause of recent global warming is believed to be the increased burning of fossil fuels chemical reactions in the atmosphere that are driven by solar heat plastic pollution in the ocean the depletion of the ozone layer

The primary cause of recent global warming is believed to be plastic pollution in the ocean chemical reactions in the atmosphere that are driven by solar heat the depletion of the ozone layer the increased burning of fossil fuels

The Greenhouse Effect results in the decrease in the surface temperature on Earth lower average ocean temperatures an oxygen shortage the rise in surface temperatures on Earth

How much more acidic are our oceans today than at the beginning of the industrial era 20 more acidic today 5 more acidic today No change More than 26 more acidic

How do the carbon dioxide molecules contribute to global warming They absorb infrared radiation emitted from the Earth and redistribute it in different directions over the Earth s surface Carbon dioxide naturally emits heat energy The large number of carbon dioxide molecules in the atmosphere creates a layer surrounding Earth They react with other greenhouse gases to cause an exothermic reaction generating heat

is a change in atmospheric conditions over minutes to days whereas is the average of conditions over decades Global cooling global warming Storm formation hurricane formation Climate weather Weather climate

If y 5x 7 compute y 0 y 0

Macmillan Learning An environmental scientist developed a new analytical method for the determination of cadmium Cd2 in mussels To validate the method the researcher measured the Cd2 concentration in standard reference material SRM 2976 that is known to contain 0 82 0 16 ppm Cd2 Five replicate measurements of the SRM were obtained using the new method giving values of 0 791 0 747 0 831 0 842 and 0 764 ppm Cd Calculate the mean x standard deviation s and the 95 confidence interval A list of t values can be found in the Student s 1 table x ppm ppm

For each of the data sets find the range and the standard deviation The measured concentration of a sodium hydroxide NaOH solution 0 01009 M 0 01013 M 0 00994 M 0 01018 M and 0 01001 M range M standard deviation The percentage of iron determined in an ore sample 21 7 18 6 16 7 and 19 3 range standard deviation

6 What is the molecular weight of the large subunit of RuB A 14000 Daltons B 55000 Daltons C 37 kDa D 50 kDa 7 Which type of buffer is used during the elution step in ion exchange chromatography to displace proteins from the beads A High pH buffer B Low salt buffer C High salt buffer D Organic solvent 8 What is the purpose of heating samples with sample buffer before protein electrophoresis A To precipitate the proteins B To renature the proteins C To denature the proteins and reduce disulfide bonds D To sterilize the samples True False Questions 1 RuBisCO is an efficient enzyme with high CO2 fixation rates True False Secondary structure of proteins involves hydrogen bonding between polypeptide chains True False 2 In ion exchange chromatography the stationary phase is typically nonpolar True False 3 Proteins can be separated based on their solubility differences using ammonium sulfate precipitation True False Calculation Questions 1 If you have a protein solution of 100 mL how much ammonium sulfate in gram is needed to reach a saturation point of 37 given that the required amount is 210 g L 2 For a 50 saturation of ammonium sulfate how many grams would be neede per liter

6 What is the molecular weight of the large subunit of RuBisCO A 14000 Daltons B 55000 Daltons C 37 kDa D 50 kDa 7 Which type of buffer is used during the elution step in ion exchange chromatography to displace proteins from the beads A High pH buffer B Low salt buffer C High salt buffer D Organic solvent 8 What is the purpose of heating samples with sample buffer before protein electrophoresis A To precipitate the proteins B To renature the proteins C To denature the proteins and reduce disulfide bonds D To sterilize the samples

5 Which factor is NOT used to distinguish two different proteins in purificatio processes A Enzymatic activity B Molecular weight C Solubility D Charge

Calculation Qu 1 If you have a protein solution of 100 mL how much ammonium is needed to reach a saturation point of 37 given that the required amount is 210 g L 2 For a 50 saturation of ammonium sulfate how many grams would be needed per liter

D Protein synthes 2 During ion exchange chromatography why are proteins with different charges separated A Polarity B Ionic strength C Molecular weight D Hydrophobic interactions ofor to

1 What is the primary function of Ribulose 1 5 bisphosphate carboxylase oxy RuBisCO in plants A DNA replication B Lipid metabolism C Photosynthesis

Which of the following maintains the patency openness of the trachea Surface tension of water C shaped cartilage rings Surfactant production Skeletal muscle layer 10 1 point Which of the following is not part of the upper respiratory system Paranasal sinuses Pharynx Larynx Nasal cavity