_____ are toxic proteins secreted by pathogenic bacteria, whereas _____ are components of the outer membrane of gram-negative pathogens
a. endotoxins...phosphotoxins
b. endotoxins...botulinum toxins
c. toxozymes...endotoxins
d. exotoxins...enterotoxins
e. exotoxins...endotoxins
Answer: e. exotoxins...endotoxins
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Answer the following statement true (T) or false (F)
The process of asexual reproduction where a diploid embryo develops from an unfertilized egg or from
diploid cells in ovule tissue is called
a. fragmentation. b. protoplast fusion. c. somaclonal section. d. grafting. e. apomixis.
In prophase I of spermatogenesis, there are ____ chromatids
a. 92 b. 23 c. 46 d. half as many (as in somatic cells) e. twice as many (as compared to mature sperm)