A mycologist visits your biology class and discusses her research on a particular fungus that lives on the bark of damaged spruce trees. She explains that the fungal hyphae of her research organism is heterokaryotic. You raise your hand and request that she define that word. Her correct response is
A. heterokaryotic means that the nuclei of each compartment of the hyphae are genetically distinct.
B. heterokaryotic means that each compartment of the hyphae contain two distinct nuclei.
C. heterokaryotic means that each compartment of the hyphae contains only one nucleus.
D. heterokaryotic means that the nuclei of the fungal hyphae are genetically the same.
Answer: A
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A. differential distribution of cytosolic factors among early embryonic cells B. extracellular signals C. cellular receptors D. specific morphogens E. All of the choices are correct
Answer the question using the accompanying figure. Which number identifies the structure that carries out protein
synthesis?
a. 2 b. 4 c. 5 d. 6 e. 9
Legless caecilians belong to which of the following lineages?
a. Caudata b. Aves c. Squamata d. Gymnophiona e. Anura
Compound leaves
A. have palmate venation. B. are toothed at the edges. C. are alternately arranged. D. have a blade divided into leaflets. E. have two or more petioles per blade.