Question

What is a mutation called if it is caused from exposure to environmental agents? A) spontaneous...

What is a mutation called if it is caused from exposure to environmental agents?

A) spontaneous

B) induced

C) missense

D) cancer

Homework Answers

Answer #1

Factors present in the environment that cause mutations are known as mutagens. These mutagens include ionisation ( ionizing radiations like X-rays, gamma rays), chemicals (like alkylators) and infectious agents. Mutations caused by these mutagens are known as induced mutations.

Hence, the correct option is (B) Induced mutations.

Option (A) is incorrect because spontaneous mutations are caused by the occurrence of errors in the natural biological processes like sickle cell anemia.

Option (C) and (D) are incorrect because missense mutation and cancer can be caused by both biological and environmental factors.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Exposure to a mutagen caused the following DNA change within exon #1 of a gene. What...
Exposure to a mutagen caused the following DNA change within exon #1 of a gene. What type of mutation is this? Wildtype sequence template DNA strand 3’ TACAGTGGGTTC 5’    coding DNA strand 5’ ATGTCACCCAAG 3’    Mutant Sequence template DNA strand 3’ TACAATGGGTTC 5’ coding DNA strand 5’ ATGTTACCCAAG 3 a missense mutation a silent mutation an exonic mutation a frameshift mutation a nonsense mutation
A mutation that changes the amino acid codon into a stop codon are called a.) silent...
A mutation that changes the amino acid codon into a stop codon are called a.) silent b.) missense c.) nonsense d.) insertion
Pick a mutation that is caused by either DNA substitution, Insertion or Deletion. (1) What is...
Pick a mutation that is caused by either DNA substitution, Insertion or Deletion. (1) What is the error (list the letters) in the DNA?   (2) Did it cause Missense Substitution, Nonsense Substitution or Frame shifting (3) Which Amino Acid or Protein does it create and which amino acid or protein does it normally create (without the mutation)? (3) What effects does it have on the body? (4) List website/references where you retrieved your material.
A new disease caused by certain strains of Salmonella is described. Studies show that the bacterium...
A new disease caused by certain strains of Salmonella is described. Studies show that the bacterium makes a protein toxin, yet no previous isolates of the Salmonella make that type of toxin. Which process most likely accounts for the Salmonella newly acquired ability to make a toxin? A) Restriction modification B) Horizontal gene transfer C) Induced mutation D) Infection by a viable lytic phage E) Spontaneous mutation
Huntington’s disease is caused by a dominant mutation. A twenty-year-old man has the mutation and does...
Huntington’s disease is caused by a dominant mutation. A twenty-year-old man has the mutation and does not show symptoms because: a. the disorder involves incomplete penetrance b. all of these c. the disorder is a time of onset one d. the disorder affects men less often than women
What type of mutation is shown? :Wildtype sequence template DNA strand 3’ TACAGTGGGTTC 5’    coding...
What type of mutation is shown? :Wildtype sequence template DNA strand 3’ TACAGTGGGTTC 5’    coding DNA strand 5’ ATGTCACCCAAG 3’    Mutant Sequence: template DNA strand 3’ TACAATGGGTTC 5’ coding DNA strand 5’ ATGTTACCCAAG 3’ a.) a missense mutation b.) a frameshift mutation c.) an exonic mutation d.) a silent mutation e.) a nonsense mutation
Translation exposure a. Is the potential gain or loss in near term cash flows caused by...
Translation exposure a. Is the potential gain or loss in near term cash flows caused by change in exchange rate. b. Is the potential gain or loss in long term cash flows caused by change in exchange rate. c. Has no influence on cash flow d. Has influence on cash flow
Alkaptonuria, which is caused by a recessive mutation, occurs at the rate of about 1 in...
Alkaptonuria, which is caused by a recessive mutation, occurs at the rate of about 1 in 360,000 people in North America.  What is the allele frequency for the allele causing the disease and what is the frequency of heterozygous carriers of the allele in the population of North America?  Choose the best answer.             Frequency of the                      Frequency of             the Alkaptonuria                      heterozygote             allele                                        carriers A)        1/250                                       1/500 B)        1/500                                       1/500 C)        1/125                                       1/250 D)        1/250                                       1/125 E)        1/600                                       1/300 Select one: a. A b. B c. C d. D e. E
The response of different organisms to the environmental rhythms of light and darkness is called (a)...
The response of different organisms to the environmental rhythms of light and darkness is called (a) vernalization (b) photoperiodism (c) phototaxis (d) phototropism.
1. In the lac operon RNA polymerase first binds to the: a. promoter b. operator c....
1. In the lac operon RNA polymerase first binds to the: a. promoter b. operator c. repressor d. regulator 2. Spontaneous mutations are: a. cause by chemicals such as acridine and caffeine b. caused by physical agents such as ultraviolet light or x-rays c. the result of errors in the base pairing of nucleotides during replication d. occur at a rate higher than the rate of induced mutations 3. Which statement about mutations is false? a. A mutation can alter...