A 9:3:3:1 phenotypic ratio is expected from a dihybrid cross between a double heterozygote and a fully recessive organism
Indicate whether the statement is true or false
FALSE
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Examine Figure 44.7 in your text, paying attention to the phylogenetic position of sponges in the two phylogenies presented. If the hypothesis represented by the tree on the right is correct, as some molecular evidence suggests, (select all that apply)
A. sponges are monophyletic. B. sponges are paraphyletic. C. the common ancestor of all animals was sponge-like in appearance. D. we don't know what the common ancestor of all animals looked like. E. none of these.
Sphincters
a. are circular muscles. b. prevent backflow. c. are smooth muscles. d. are found at the entrance and exit of the stomach. e. include all of these
Autism, Alzheimer disease, Parkinson’s disease, and schizophrenia are all associated with ____
a. copy number variants b. fragile sites c. inversions d. deletions e. translocations
Transcription and translation can best be explained through which analogy?
Transcription is when a recipe is copied out of a cookbook into another cookbook, and translation is when the cookbook is read, ingredients are put together, and the cookies are made. Transcription is the copying of a recipe from a cookbook to an index card, and translation is combining the baking ingredients and making chocolate chip cookies. Transcription is when the baking ingredients are combined and chocolate chip cookies are made, and translation is when the recipe from a cookbook is copied to an index card. Transcription is the copying of a recipe from a cookbook to an index card, and translation is rewriting the recipe on an index card into another language. Transcription is the copying of a recipe from a cookbook to an index card, and translation is combining the baking ingredients and saving them to bake at a later time.