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Chapter 18: The Genetics of Viruses and Bacteria Activities Quiz

Activities Quiz

1 .The pointer is indicating the virus"s _____. (Activity: Simplified Viral Reproductive Cycle) envelope genome mitochondria capsid microfilaments 2 .Viral DNA makes mRNA by the process of _____. (Activity: Simplified Viral Reproductive Cycle) replication infection translation lysis warrior 3 .The lytic cycle of bacteriophage infection ends with the _____. (Activity: Phage Lytic Cycle) replication of viral DNA entry of the phage protein coat into the host cell assembly of viral particles into phages the injection of phage DNA into a bacterium rupture of the bacteria 4 .The pointer is indicating the _____. (Activity: Phage Lytic Cycle) viral envelope viral nucleic acid genome bacterium"s nucleic acid genome viral protein coat bacterium"s plasma membrane 5 .As a result of the lytic cycle, _____. (Activity: Phage Lytic Cycle) the host cell is not destroyed the host cell"s DNA is destroyed viral ribosomes are produced viral DNA is incorporated into host cell DNA a prophage is produced 6 .Click on the diagram to start the animation. The arrow is indicating _____. (Activity: Phage Lysogenic and Lytic Cycles)


You are watching: As a result of the lytic cycle, _____.

host cell DNA a capsid an envelope a Golgi apparatus a prophage 7 .Click on the diagram to start the animation. This animation is illustrating an early stage of _____. (Activity: Phage Lysogenic and Lytic Cycles)
the lytic cycle the lysogenic cycle transcription translation lysis 8 .In the lysogenic cycle _____. (Activity: Phage Lysogenic and Lytic Cycles) host DNA is destroyed and viral DNA is replicated a bacterium replicates without passing viral DNA to its daughter cells viral DNA is destroyed and host DNA is replicated a bacterium divides once before the lytic cycle is initiated viral DNA is replicated along with host DNA 9 .Click on the diagram to start the animation. Which of these is the best description of this animation? (Activity: Phage Lysogenic and Lytic Cycles)
The lysogenic cycle has begun. The lytic cycle is making a transition to the lysogenic cycle. The bacterium has successfully fought off the viral infection. The lysogenic cycle is making a transition to the lytic cycle. The host cell has begun to reproduce. 10 .Cycle A is the _____ cycle and cycle B is the _____ cycle. (Activity: Phage Lysogenic and Lytic Cycles) revolt ... lysogenic lytic ... phage lysogenic ... phage lysogenic ... lytic phage ... lysogenic 11 .The genetic material of HIV consists of _____. (Activity: Retrovirus (HIV) Reproductive Cycle) single-stranded DNA single-stranded RNA double-stranded DNA double-stranded RNA none of the over 12 .Which of these binds to receptor molecules on the host cell membrane? (Activity: Retrovirus (HIV) Reproductive Cycle) A B C D E 13 .What is the function of reverse transcriptase? (Activity: Retrovirus (HIV) Reproductive Cycle) It catalyzes the formation of a polypeptide from an RNA template. It catalyzes the formation of DNA from a polypeptide template. It catalyzes the formation of RNA from a polypeptide template. It catalyzes the formation of RNA from a DNA template. It catalyzes the formation of DNA from an RNA template. 14 .What is the source of a viral envelope? (Activity: Retrovirus (HIV) Reproductive Cycle) host cell DNA prophages provirus host cell membrane viral glycoproteins 15 .Which of these is reverse transcriptase? (Activity: Retrovirus (HIV) Reproductive Cycle) A B C D E 16 .Which of these is the viral genome? (Activity: Retrovirus (HIV) Reproductive Cycle) A B C D E 17 .Click on the diagram to start the animation. What enzyme is responsible for the process seen here? (Activity: Retrovirus (HIV) Reproductive Cycle)
RNA polymerase DNA polymerase reverse transcriptase endonuclease DNA ligase 18 .Double-stranded viral DNA is incorporated into a host cell as a _____. (Activity: Retrovirus (HIV) Reproductive Cycle) promoter provirus transposon lac homeoboxes 19 .The operon model of the regulation of gene expression in bacteria was proposed by _____. (Activity: The lac
Operon in E. coli) Watson and Crick Franklin Darwin Jacob and Monod Mendetogether 20 .Which of these is NOT a component of the lac operon? (Activity: The lac Operon in E. coli) lactose-utilization genes only promoter only regulatory gene only operator only promoter and operator 21 .Regulatory proteins bind to _____. (Activity: The lac Operon in E. coli) the operator the lactose-utilization genes the regulatory gene RNA polymerase transcription components 22 .In the presence of a regulatory protein the lac operon is _____. (Activity: The lac Operon in E. coli) transcribed not transcribed transcribed at a faster than usual rate is turned on either transcribed or not spelling, orthography 23 .Click on the diagram to start the animation. In this animation the blue sphere represents _____. (Activity: The lac Operon in E. coli)
an active repressor an inactive repressor lactose RNA polymerase mRNA 24 .Click on the diagram to start the animation. In this animation the orange object represents _____. (Activity: The lac Operon in E. coli)


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an active repressor an inactive repressor lactose RNA polymerase mRNA 25 .Which of these is a regulatory gene? (Activity: The lac Operon in E. coli) A B C D E ©;2005 Pearson Education, Inc., publishing as Benjamin Cummings.