题目内容

Suppose it takes 12 hours for a bacterium to complete 1 generation, when you culture 100 cells for 2 days, how many bacterial cells you can get theoretically?

A. 400
B. 800
C. 1600
D. 3200

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Which receptors of the influenza virus are responsible for binding to the host cell?

A. hemagglutinin
B. type A
C. neuraminidase
D. capsid proteins

The general steps in a viral multiplication cycle are

A. adsorption, penetration, synthesis, assembly, and release
B. endocytosis, replication, assembly, and budding
C. adsorption, duplication, assembly, and lysis
D. endocytosis, penetration, replication, maturation, and exocytosis

Which phase of a fungal life cycle is best adapted to growing in a host's body?

A. yeast
B. hyphal
C. conidial
D. filamentous

What property of the retroviruses enables them to integrate into the host genome?

A. the RNA they carry
B. presence of glycoprotein receptors
C. presence of integrase
D. a positive-sense genome

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