Cell structure, existing in pairs, that occurs in the centrosome and may help organize a mitotic spindle for chromosome movement during animal cell division.

What will be an ideal response?


centrioles

Biology & Microbiology

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A new organism was identified that contained arsenic in place of phosphate in its DNA double helix structure. Based upon this information alone, it can be determined that this change will greatly alter the information encoded by this genetic material.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Systemic anaphylaxis can quickly result in airway blockage, shock, and death.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which diagnostic test(s) would you recommend for a patient that you suspect is showing signs of early stage Charcot-Marie-Tooth disease? (Check all that apply.)  

_____  Culture and protein expression profile of oligodendrocytes _____  EKG to look for rhythmic abnormalities _____  EMG to test muscle responses _____  fMRI of the frontal lobe of the brain _____  fMRI of the rACC of the brain _____  Genetic testing for mutations in the PMP22 and MFN2 genes _____  Nerve biopsy to look for signs of demyelination _____  Nerve conduction study to test the rate of impulse conduction Clarify Question · What is the key concept addressed by the question? · What type of thinking is required?   Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

In working with an infertile couple, through fertility testing, it is confirmed the wife releases polar bodies each month, wrapped in follicle cells. How would you explain their infertility?

A. The wife's ovaries are not making eggs, just polar bodies. B. The wife lacks ovaries. C. The wife has excess estrogen. D. The wife's ovaries are producing testosterone. E. None of the answer choices is correct.

Biology & Microbiology