Which tissue can not divide to give rise to identical progeny in a plant that reproduces asexually?
A. root
B. pollen grain
C. stem
D. leaf
E. ovule
Answer: B
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Which of the following molecules is incorrectly matched with its function?
a. T cell ? cell-mediated immunity b. neutrophil ? phagocytosis c. B cell ? antibody-mediated immunity d. basophil ? allergy e. T cell ? antibody-mediated immunity
Chart the path of molecules of a secreted protein beginning at the DNA for a eukaryote What will be an ideal response?
Imagine you conduct a parabiosis experiment with two strains of mice, one of which lacks a functional leptin gene (ob strain) while the other lacks a functional receptor for this hormone (db strain). Which of the following outcomes would you observe?
A. no weight change in the db mouse B. decreased body weight in the db mouse C. decreased body weight in the ob mouse D. no weight change in the ob mouse E. increased body weight in the ob mouse
Name two genera of bacteria that produce endospores.
What will be an ideal response?