Centrioles are also called basal bodies
Indicate whether the statement is true or false
TRUE
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Hyphae that contain two genetically distinct, sexually compatible nuclei within
each cell are described as: a. twins. b. couplets. c. dikaryotic. d. polykaryotic. e. double hyphae.
Steroid hormones produce their effects in cells by _____
A) activating key enzymes in metabolic pathways B) activating translation of certain mRNAs C) promoting the degradation of specific mRNAs D) binding to intracellular receptors and promoting transcription of specific genes
Which statement best describes how flight and feathers are related in the evolution of birds?
A) The first flying birds did not have feathers, which evolved later. B) Feathers and flight evolved at the same time. C) The first feathered ancestors to birds did not fly but may have used their feathers for insulation and display. D) Feathers are soft and do not leave fossils or fossil traces, so it is unknown which organisms first had feathers.
Which of the following is a method for the demonstration of fungi:
a) Ziehl-Neelsen b) Warthin-Starry c) Giemsa d) PAS