58-year-old nuclear power plant worker presented to his family physician complaning of increasing fatigue and weakness. He also reported pain in his lower back and arms when he walks. Physical examination revealed pale mucous membranes and hepatosplenomegaly. The physician ordered a complete blood count (CBC) and urinalysis (UA). A follow-up appointment was scheduled for the following week.

Laboratory Data:

The CBC revealed that the patient had anemia. His leukocyte count and differential count were normal, except for a rouleaux (rolled coin) appearance of the RBCs. The UA was normal. The patient was called and requested to return to the laboratory for additional tests. The physician ordered an ESR, kidney screening profile, liver blood profile, and radiographic skeletal survey, with the following results:

• ESR—50 mm/hr

• Kidney profile—normal

• Liver profile—normal, except for increased globular protein

• Skeletal survey—bone lesions in various sites

Questions:

1. What follow-up laboratory tests might be ordered to assist in establishing a definitive diagnosis?

2. What is the nature of the urine protein found in this disorder ?

3. What is the most significant laboratory finding in this disorder?

4. What type of immunologic defect exists in this disease process?

5. Does this patient have a risk of occupational exposure?

You have identified a Type 1 transposable element in yeast. This transposon has a small

mutation that inactivates its only protein-encoding gene. If you provide this transposon

with an external source of transposase, would you expect this transposon to be able to

move?

Why or why not?

Suppose you used a paper chromatography method to separate all the amino acids, but aspartate (aspartic acid) and glutamine were not resolved. Which of the following would be your best next step to separate these 2 amino acids? There may be more than one possibility. Pick one choice and justify it.
Choices: (paper electrophoresis at pH 2) (paper electrophoresis at pH 12) (paper chromatography)
(trypsin treatment) (paper electrophoresis at either pH).

1.) Describe the differences and similarities of mitosis and meiosis.

2.) Define homologous chromosomes, homologous, synapse, crossing over, reduction division, independent assortment, and synaptonemal complex.

3.) Describe the mechanisms that increase genetic diversity through sexual reproduction.

Why is it important to have standards and blanks in an ELISA?

please answer the following detailed in a paragraph. thanks!

1. People who use proton pumps inhibitors or antacids are more prone to infections of the gastrointestinal tract. Can you explain why?

2. The bacterium that causes Hansen’s disease (leprosy), Mycobacterium leprae, infects mostly the extremities of the body: hands, feet, and nose. what is most likely its optimum temperature of growth?

3. Some hyperthermophiles can survive autoclaving temperatures. Are they a concern in health care?

1. Explain the difference between homeostasis and disease? What is the difference between a chronic disease and an acute diseases? Can all diseases be cured (explain and give example)? Amy’s blood glucose remains elevated and rarely returns to normal. Why is this departure from homeostasis an important observation?

Match the description with the correct term. Answers can be used more than once!  

Group of answer choices

Crayfish fight each other to determine which male will mate with females. They fight by charging each other and clashing their claws together. The male with bigger claws usually wins. What is this describing?

      [ Choose ]            Evolutionary trade-off            Intersexual selection            Stabilizing selection            Intrasexual selection            Founder effect      

In a small group of people living in a remote area, there is a high incidence of “blue skin”, a condition that results from a variation in the structure of hemoglobin. All of the “blue-skinned” residents can trace their ancestry to one couple, who were among the original settlers of this region. The unusually high frequency of “blue skin” in the area is an example of

      [ Choose ]            Evolutionary trade-off            Intersexual selection            Stabilizing selection            Intrasexual selection            Founder effect      

Robins typically lay four eggs during each reproductive event. If more than four chicks are hatched, each may be malnourished, and if fewer than four chicks are hatched, it may result in too few viable offspring to pass on the parent’s genes. This is an example of [ Choose ]            Evolutionary trade-off            Intersexual selection            Stabilizing selection            Intrasexual selection            Founder effect   

38. If a plant has both male and female reproductive organs it is:

a) Monoecious.

b) Dioecious.

39. Ovules are found within what part of a flower?

a) Ovary.

b) Stigma.

c) Style.

d) Anther.

e) Corolla.

40. If a plant has netted veins in its leaf, four stamens in its flower, and a taproot, it is probably in what class of flowering plants?

a) Monocotyledonae (Monocots).

b) Dicotyledonae (Dicots).

41. Which Plant Division has seeds with a 3n endosperm due to double fertilization?

a) Pterophyta.

b) Coniferophyta.

c) Anthophyta.

d) Bryophyta.

42. Which Plant Division uses pollinators like bees, butterflies, moths, ants, beetles, hummingbirds, and bats?

a) Pterophyta.

b) Anthophyta.

c) Coniferophyta.

d) Bryophyta.

43. How many seeds develop from each ovule?

a) One.

b) Two.

c) Three.

d) Four.

44. Which of the following is not a fruit?

a) Banana.

b) Tomato.

c) Zucchini.

d) Cabbage.

45. Which animal phylum is characterized by a lack of symmetry (asymmetrical), and a “skeleton” composed of spicules and sometimes a protein called spongin?

a) Cnidaria.

b) Annelida.

c) Chordata

d) Porifera.

e) Mollusca

46. Corals, sea anemones, and jellyfish are members of which phylum?

a) Porifera.

b) Cnidaria.

c) Annelida.

d) Chordata

e) Mollusca

47. A jellyfish has what type of body form?

a) Medusa.

b) Polyp.

48. Which of the following lacks a digestive tract?

a) A shark.

b) A tapeworm.

c) A snail.

d) An earthworm.

49. The parasitic worms, Trichinella, Enterobius (pinworms), and Ascaris  are all members of what animal phylum?

a) Annelida.

b) Arthropoda.

c) Nematoda.

d) Platyhelminthes.

e) Mollusca.

Concerning the glycogen synthesis and pentose phosphate pathways, which are particularly active in liver, muscle and fat tissue soon after eating a meal, and why? (What does their being active accomplish do for your organism?) Describe and explain.