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The lateral cord of the right brachial plexus of a right handed 35 yr old male is completely severed.

Discuss the clinical presentation of the patient in terms of muscle function of the right upper extremity. Be specific about what muscles might be affected and to what extent. If you wish to add the sensory deficits expected as well, that is fine.


Which of the following is a characteristic of emphysema?

A) Inflammation of the walls of the trachea and bronchi
B) Destruction of the alveolar walls
C) Increase of the mucus in nose
D) Thickening of the capillaries in the lungs
Calculate the average atomic mass of lithium, which occurs as two isotopes that have the following atomic masses and abundances in nature: Li-6.017, 7.30% and Li-7.018, 92.70%.
In a population of 50 individuals, there are 12 AA genotypes, 29 Aa genotypes, and 9 aa genotypes. Assuming the inheritance of allele A and a is complete dominance and that A is the dominant allele.

a) Calculate the number of individuals in the population expressing the dominant phenotype.

b) Calculate the proportion of each of the genotypes observed.

c) Calculate the proportion of the A allele and the a allele.

d) State the equation of Hardy-Weinburg equilibrium. Using the allelic
proportions that you calculated above, calculate the proportions of each
genotype that you would expect under Hardy-Weinburg Equilibrium.
The volume of blood pumped by each ventricle during a beat is known as systolic volume. If the systolic volume is multiplied by the number of beats per minute, the resulting value is the cardiac cost.

Cardiac cost = systolic volume * cardiac frequency

Which is the cardiac cost (volume of blood pumped by each ventricle in a minute) of an adult person in rest whose heart beats 72 times per minute and pumps 70 milliliters of blood in each contraction?

a. 3L/min
b. 5 L/min
c. 5 L/min
d. 50 L/min
Given below are data on the breathing rate, heart rate and body temperature of four different mammals, A to D.



Animals

Breathing rate

(inhalations/min)

Breathing rate

(inhalations/min)

Body temperature

(°C)

A

160

500

36,5

B

15

40

37,2

C

28

190

38,2

D

8

28

35,9



Rank animals A to D in descending order for surface area per unit volume of the body and in descending order for total volume of blood in the body:
The following RNA sequence can be read in two different directions. Describe how the two interpretations differ:
AUGACAAAAGGUUAC

Explain how the amino acid sequence would change if the C in the second codon were deleted. Identify what kind of mutation would happen.
A particle moves along the x-axis with constant acceleration of 4m/s^2 at t=0 it is at x=5m and has a speed of 6m/s where it is located at t=3s.
1) A ball is kicked at angle of 53° above the horizontal surface with speed 50m/s what is the maximum height of the ball?
2) based on the above question how long the ball stay in the air?
The position of the particle as function of time is given by x(t) =5t^2-t^3 than find
a) the average velocity between t=1second and t=3second
b) the average acceleration between t=1second ft t=3s
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