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Questions and Answers
Which bacterial strain was responsible for transforming the live R-type bacteria into a virulent form?
Which bacterial strain was responsible for transforming the live R-type bacteria into a virulent form?
- S-type
- Dead S-type (correct)
- R-type
- Mixed infection
What can be concluded about the genetic material of bacteria based on the process of bacterial transformation described?
What can be concluded about the genetic material of bacteria based on the process of bacterial transformation described?
- RNA is the genetic material
- DNA is the genetic material (correct)
- Lipids are the genetic material
- Proteins are the genetic material
What did phage transfection experiments demonstrate about viruses?
What did phage transfection experiments demonstrate about viruses?
- DNA is the genetic material of viruses (correct)
- Proteins are the genetic material of viruses
- Carbohydrates are the genetic material of viruses
- RNA is the genetic material of viruses
How was the transforming principle defined in the context of bacterial transformation?
How was the transforming principle defined in the context of bacterial transformation?
In phage infection experiments, what was observed when DNA and protein components of bacteriophages were labeled with different radioactive isotopes?
In phage infection experiments, what was observed when DNA and protein components of bacteriophages were labeled with different radioactive isotopes?
What property was exhibited by the virulent bacteria recovered from mixed infections?
What property was exhibited by the virulent bacteria recovered from mixed infections?
What is the term used to describe the situation when a mutation in a second gene bypasses the effect of a mutation in the first gene?
What is the term used to describe the situation when a mutation in a second gene bypasses the effect of a mutation in the first gene?
What is the common cause of hotspots in genes?
What is the common cause of hotspots in genes?
Which type of hereditary agent is characterized as a small infectious nucleic acid without a protein coat?
Which type of hereditary agent is characterized as a small infectious nucleic acid without a protein coat?
What type of mutation increases the virulence of the viroid PSTV (potato spindle tuber viroid)?
What type of mutation increases the virulence of the viroid PSTV (potato spindle tuber viroid)?
Which of the following statements is true regarding deamination of cytosine and 5-methylcytosine?
Which of the following statements is true regarding deamination of cytosine and 5-methylcytosine?
What term describes some very small hereditary agents that do not encode polypeptides but consist of RNA or protein with heritable properties?
What term describes some very small hereditary agents that do not encode polypeptides but consist of RNA or protein with heritable properties?
What is the function of a gene?
What is the function of a gene?
In what form is the PrP protein found in normal brain cells?
In what form is the PrP protein found in normal brain cells?
Which disease is similar to scrapie in sheep and goats?
Which disease is similar to scrapie in sheep and goats?
What is the relationship between genes and alleles?
What is the relationship between genes and alleles?
What is the abnormal three-dimensional structure of PrPsc suspected of causing?
What is the abnormal three-dimensional structure of PrPsc suspected of causing?
What was Mendel's recognition of a gene nearly 150 years ago?
What was Mendel's recognition of a gene nearly 150 years ago?