Mendel performed hybridizations by transferring pollen from the _______ of the male plant to the female ova.
A. anther
B. pistil
C. stigma
D. seed
Answer: A. anther
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In ALL exergonic reactions, ___.
A. the reaction proceeds with a net release of free energy. B. a net input of energy from the surroundings is required for the reactions to proceed. C. the reactions are nonspontaneous. D. the products have more total energy than the reactants. E. some reactants will be converted to products.
Which scientist(s) identified the transforming substance involved in changing harmless (R) bacteria to lethal (S)
bacteria?
a. Avery and McCarty b. Griffith c. Chargaff d. Hershey and Chase e. Pauling
Which statement concerning pathogen-associated molecular patterns (PAMPS) is FALSE?
a. They are features of pathogens recognized by cells of animals. b. They trigger activation of phagocytes. c. They react with specific receptors on host cells. d. They are found on all microbes except viruses. e. The peptidoglycan of gram-positive bacteria is an example.
Which of the following statements is NOT true about the flatworms?
a) Liver flukes and blood flukes are parasites in humans only. b) Schistosomiasis is a common human blood disease caused by flukes in tropical areas. c) Tapeworms are hermaphroditic, having both male and female reproductive structures in each proglottid. d) Planaria contain pigmented, photosensitive eyespots. e) tapeworms have a ladder-type nervous system similar to other flatworms.