A Barr body exists for the purpose of _____
a. gene dosage compensation
b. insuring fertilization
c. blocking the activity of the Y chromosome
d. turning on the SRY gene
e. activating master genes
ANSWER: a
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Concentrations of integral and peripheral proteins that function in large enzyme complexes are located in the:
a. Golgi apparatus b. Lipid rafts c. Nucleolus d. Rough endoplasmic reticulum
If two species have homologous structures:a
the structures have the same function. b. the structures are identical. c. the species are related by a common ancestry. d. the species have very different ancestors. e. the structures have the same function and they are identical
Which kingdom is correctly described?
A. Protists: unicellular and heterotrophic only B. Plants: multicellular and photosynthetic C. Animals: multicellular and saprotrophic D. Fungi: unicellular and photosynthetic
The combination of a virus's protein coat and nucleic acid core is called the (capsid/virion/nucleocapsid)
What will be an ideal response?