Fisher's sex ratio model was put to test in a species of blue moon butterflies on the Samoan islands of Upolu and Savaii, where which of the following conditions existed?
a. The male:female sex ratio was the expected 1:1.
b. 99% of the butterflies were female and only 1% were male.
c. Only the males were infected with the Wolbachia bacterium.
d. A and C.
B
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Which of the following genera is photosynthetic using bacteriochlorophyll g?
A. Heliobacterium B. Clostridium C. Veillonella D. Caryophanon
Answer the following statements true (T) or false (F)
1. G proteins and Ras are activated when bound to guanosine diphosphate. 2. One common feature with G-protein coupled, enzyme-linked, and growth factor receptors is that their activation leads to activation of protein kinases. 3. Cyclic AMP activates protein kinase C in producing a cell response. 4. If IP3 binds a Ca2+ ligand-gated ion channel in the endoplasmic reticulum then cytosolic Ca2+ levels will rise in the cell.
A diploid cell with three pairs of chromosomes has the genotype Aa Bb Cc, where each gene is on a different chromosome. If this cell were to undergo meiotic division, how many genetically different types of gametes could be produced?
A) 1 B) 3 C) 6 D) 8 E) 9
Which of the following animals does NOT
have an endoskelton?
a. sea stars b. snakes c. frogs d. oysters e. all of these animals have an endoskeleton