Question
Which of the following is a physical mutagen?
Heat
X rays
UV rays
All of the above
Heat
X rays
UV rays
All of the above
Hint:
Environmental factors excluding chemical and infectious agents come under physical mutagens.
The correct answer is: All of the above
- Mutation is a irreversible change in the sequence of nucleic acids which can be harmful or beneficial to the individual
- Mutation can be caused due to error in cell division or due to external factors
- Factors which cause mutation are called mutagens
- Mutagens can be classified as physical, chemical and biological mutagens
- Physical mutagens include the external factors like exposure to ionizing radiations (X rays, gamma rays, UV rays), high temperature, high concentration of carbon dioxide and many more
- Mutations caused due to ionizing radiations are harmful
- Point mutation is the most common type due to ionizing radiations
Related Questions to study
Which of the following is INCORRECT about intercalating agents?
Which of the following is INCORRECT about intercalating agents?
_______ are also known as jumping genes.
_______ are also known as jumping genes.
Which of the following are not ionizing radiations?
Which of the following are not ionizing radiations?
Mutagens can be___________.
Mutagens can be___________.
Biological mutagens include:
Biological mutagens include:
Intercalating agents cause which type of mutations in the DNA.
Intercalating agents cause which type of mutations in the DNA.
In the following compound which, is one of the intercalating agents?
In the following compound which, is one of the intercalating agents?
Which chemical mutagens add an OH-group to DNA base pairs?
Which chemical mutagens add an OH-group to DNA base pairs?
Which base is obtained due to the deamination of adenine?
- The reaction is mediated by deaminases
- Adenine is a purine which is a two ringed structure
Which base is obtained due to the deamination of adenine?
- The reaction is mediated by deaminases
- Adenine is a purine which is a two ringed structure
Congenital malformations are caused by which of the following mutagens?
Congenital malformations are caused by which of the following mutagens?
Damages and errors in the DNA can cause___________
- Mutation can be beneficial or harmful depending upon the impact it has produced on the organism
Damages and errors in the DNA can cause___________
- Mutation can be beneficial or harmful depending upon the impact it has produced on the organism
5-bromouracil is the analog of which base?
- Base analogues are naturally occurring molecules having similar structure to common bases
- 5BromoUracil and 2AminoPurine are common base analogues
5-bromouracil is the analog of which base?
- Base analogues are naturally occurring molecules having similar structure to common bases
- 5BromoUracil and 2AminoPurine are common base analogues
Nitrous acid is a __________ agent.
Nitrous acid also converts adenine to hypoxanthine and guanine to xanthine
Nitrous acid is a __________ agent.
Nitrous acid also converts adenine to hypoxanthine and guanine to xanthine
DNA is sensitive to temperatures above _______.
- PCR was discovered by Kary Mullis
- Various forms of PCR are available which are all based on the basic three steps
- Besides replication, PCR can also be used in diagnosis, modification of genetic material, paternity testing and many more
DNA is sensitive to temperatures above _______.
- PCR was discovered by Kary Mullis
- Various forms of PCR are available which are all based on the basic three steps
- Besides replication, PCR can also be used in diagnosis, modification of genetic material, paternity testing and many more
Ionizing radiations include:
- Mutagens are the factors that cause mutation
- Physical mutagens include ionizing radiations, high concentration of carbon dioxide, etc
Ionizing radiations include:
- Mutagens are the factors that cause mutation
- Physical mutagens include ionizing radiations, high concentration of carbon dioxide, etc
