Which structures can still undergo meiosis at the time of fertilization?
a. 2
b. 3
c. 2 and 3
d. 2, 3, and 5
e. 5
C
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A woman with blood type B and a man with blood type A could have children with which of the following phenotypes?
A. AB or O B. A, B, or O C. A, B, AB, or O D. AB only
Which observations illustrate shared ancestry by anatomical comparison studies? Check all that apply.
_____ The same structure has evolved to carry out different functions. _____ Different structures evolve in similar ways when subjected to the same selective pressures. _____ A structure becomes vestigial. _____ Structures are found to be homologous.
Constitutive genes code for proteins that are needed for survival
__________________ Indicate whether the statement is true or false.
Unikonts are characterized by having:a
two centrioles. b. one flagellum. c. cell walls of chitin. d. micronuclei. e. cell walls of silica.