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Ch 8 QUIZ

Chapter 8 True False Questions from Online Quizzes

QuestionAnswer
The term phenotype is used to describe all of the organism's genetic information T OR F? False
The F factor plasmid allows bacteria to grow on unusual carbon sources. T or F? False
In prokaryotes, translation of an mRNA molecule can begin before transcription of the mRNA molecule is completed? T or F? True
Three-base segments on mRNA that specify amino acids are called anticodons T or F? False
Antibiotic resistance can be carried on plasmids and passed from bacterium to bacterium during conjugation? T or F? True
An operon consists of structural genes that encode enzymes along with the encessary regulary genes? T or F False
Plasmids may encode toxin genes that enhance the pathogenicity of an organism? T or F True
Mutations are always harmful to cells T or F? False
Hfr cells transfer genes to recipient cells in a particular order T or F? True
In E. Coli, the presence of lactose is necessary and sufficient for induction of the lactose-utilization genes T or F? False
To begin transcription, the RNA polymerase binds a region on DNA known as the Promoter
Genes whose products are produced constantly are Constitutive
The spontaneous mutation rate for most organisms is low due to ________ by DNA polymerase during DNA replication Proofreading
Small stretches of DNA that can move within a genome are referred to as __________ Transposons
The process by which normally repressed genes are "turned on" is referred to as _________ Induction
The codons UAA, UAG, and UGA signal the end of a gene sequence and are known as ______ codons stop
In the lac operon of E. coli, the repressor protein binds to the region known as the _________ in the absence of lactose Operator
In the lac operon of E. coli, the presence of lactose and the absence of _______ are required for production of lactose-utilization proteins glucose
The transfer of genetic information between organisms through processes such as transduction or conjugation is called _________ gene transfer horizontal
In DNA synthesis, the strand that is synthesized continuously is the ________ ______. Leading strand.
Created by: 1624980995
 

 



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