The pathogen Haemophilus influenzae B causes_____.
A) Meningitis in children
B) Upper respiratory flu
C) Endocarditis
D) Genital chancroid
Ans: A) Meningitis in children
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Interpret the pedigree in the accompanying figure by describing each symbol and number. How might the information from this pedigree be used by clinicians and researchers?
What will be an ideal response?
In a eukarytote, DNA is transcribed in the
a. mitochondria. b. cytoplasm. c. ribosomes. d. nucleus. e. endoplasmic reticulum
Humans acquire their first microorganisms during ____
a. fetal development b. nursing c. vaginal delivery d. the first year of life e. exposure to the air
A dysfunctional cell lacks a signal peptidase and is unable to cleave the ER signal sequence from proteins translated in the ER. What will be the effect on the cell's proteins?
A. The cell will have no integral membrane proteins. B. All cellular proteins will have an ER signal sequence. C. There will be a common signal sequence at the C-terminus of all integral membrane proteins in the nuclear envelope. D. All cellular proteins will become membrane proteins. E. There will be a common signal sequence at the N-terminus of all integral membrane proteins in the plasma membrane.