Unlike all other honeybees, worker bees in the South African subspecies Apis mellifera capensis can lay eggs that develop asexually into queens, which makes it possible for them to "nest parasitize" other subspecies of honeybees
This is due to ________. A) the effects of many genes integrated together (epistasis)
B) a homeotic mutation of a gene in the Hox cluster
C) the appearance of new genes that are paralogous with Hox genes
D) a deletion of nine nucleotides in the gemini transcription factor gene
E) horizontal gene transfer from a distantly related insect species
D
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The primary immune response can take up to ____ for the antibody to peak, whereas the secondary immune response can take up to _____ for the antibody to peak.
What will be an ideal response?
The classification of prokaryotes in Bergey's Manual of Systematic Bacteriology is largely based on
A) Gram stain reaction. B) habitat. C) type of electron receptor used in cellular respiration. D) rRNA sequences. E) cellular morphology.
When a person has laryngitis, he or she cannot speak. What must happen to permit normal speech?
A) The epiglottis must cover the glottis. B) The swelling of the vocal cords must decrease so they can vibrate normally. C) Inflammation in the bronchioles has to go down before enough air can enter the lungs. D) Inflammation in the trachea has to go down before enough air can enter the lungs.
A patient that experiences a tuberculin skin test reaction is experiencing which class of hypersensitivity reactions?
A) type I B) type II C) type III D) type IV E) type V