Question

Q 3, Exposure of cells to X rays and gamma rays can cause which of the...

Q 3, Exposure of cells to X rays and gamma rays can cause which of the following?

pyrimidine dimers

base-pair substitutions

frameshift mutations

physical breaks in chromosomes

There should only be one answer, the most correct. Thank you!

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Ans : physical breaks in chromosomes.

There can be two types of radiations : Ionising and Non ionising radiations.

The X rays and gamma rays are the ionising radiations that cause the formation of ions and free radicals .These ions and free radicals are strong enough to break the covalent bonds , so they break the backbone of the DNA , and chop them into little pieces.

When the cell tries to bring together the chopped DNA , the mistakes are bound to happen , and hence mutations result.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Exposure of cells to X rays and gamma rays can cause which of the following?...
1. Exposure of cells to X rays and gamma rays can cause which of the following? a.frameshift mutations b.base-pair substitutions c.physical breaks in chromosomes d.pyrimidine dimers Select all components that are part of the first line of defense: a.lysozyme b.defensins c.C3 and C5 d.NOD e.TLR f.stomach pH 3.In an inducible operon, which of the following must occur to inhibit gene expression? a.The repressor must bind to the operator. b.The inducer must bind to the repressor. c.The corepressor must bind to...
Q 16, Here is the coding region for two strains of the same bacterial species: Strain...
Q 16, Here is the coding region for two strains of the same bacterial species: Strain 1: 5' - GTACTAACCATATTCACC - 3' Strain 2: 5' - GCTACTAACCATATTCACC - 3' There should only be one correct answer. Thank you! Assume this region is translated. Select the true statement: 1. This is a deletion mutation that results in frameshift. 2. This is a substitution mutation resulting in missense. 3. This is an insertion mutation that is silent. 4. This is an insertion...
1. __________ can cause genes to move from one linkage group to another A. Inversions B....
1. __________ can cause genes to move from one linkage group to another A. Inversions B. Deletions C. UV-light exposure D. Translocations E. Unequal crossing over 2. Transposons that use RNA as an intermediate differ from DNA-only transposons in that the activity of former requires? A. Indirect repeat at one end and direct repeat at the other B. A gene for transposase C. A gene for reverse transcriptase D. A gene for RNA polymerase E. A selectable marker such as...
Q1. Which of the following is a sequencing-based technique that can be used to compare the...
Q1. Which of the following is a sequencing-based technique that can be used to compare the change in expression of all of the genes in treated and untreated cells to determine how gene expression changes due to the treatment? a) GWAS b) Gene expression microarray c) RNAseq d) Metagenomics Q2. Which of the following statements is CORRECT? a) The most common site of DNA methylation is the guanine CpG islands. b) Vinclozolin was found to only affect the mice exposed...
QUESTION 1 Why do non-fermenters form white/colorless colonies on MacConkey agar? a. They breakdown mannitol b....
QUESTION 1 Why do non-fermenters form white/colorless colonies on MacConkey agar? a. They breakdown mannitol b. They are gram positive c. They are coliform d. They do not breakdown lactose e. They are fecal coliform 5 points    QUESTION 2 Bacteria that can breakdown (ferment) lactose would show this result. a. Yellow color change on a mannitol salt agar b. Yellow color change on a lactose phenol red broth tube c. Green/brown color change on blood agar d. Red color...
46. Which of the following can provide valuable insight to a nutrition coach, when attempting to...
46. Which of the following can provide valuable insight to a nutrition coach, when attempting to establish motivation? Food logs Open-ended questions Incentives and penalties Before and after photos 47. The state of having complete understanding and knowledge of a subject or situation is referred to as mastery. autonomy. knowledge. understanding. 48. What is the goal of uncovering ambivalence? To produce dialogue To listen, rather than tell To communicate respect for and acceptance of clients and their feelings To create...
1- Chemotherapy may cause patients to experience GI problems because: a.The chemotherapy drug increases blood flow...
1- Chemotherapy may cause patients to experience GI problems because: a.The chemotherapy drug increases blood flow to the tumor b.The chemotherapy drug causes an allergic reaction c.The chemotherapy drug affects rapidly-dividing epithelial cells d.The chemotherapy drug is difficult to metabolize 2- The primary goal of medical nutrition therapy for cancer patients is: a.To ensure adequate intake of fluids b.To ensure adequate micronutrient intake c.To prevent cachexia D. To increase body weight 3- Which of the following nutrient recommendations for HIV...
1. For a pair of sample x- and y-values, what is the difference between the observed...
1. For a pair of sample x- and y-values, what is the difference between the observed value of y and the predicted value of y? a) An outlier b) The explanatory variable c) A residual d) The response variable 2. Which of the following statements is false: a) The correlation coefficient is unitless. b) A correlation coefficient of 0.62 suggests a stronger correlation than a correlation coefficient of -0.82. c) The correlation coefficient, r, is always between -1 and 1....
The picture shown below shows variation among three individuals with respect to 4 nucleotides - AGAT....
The picture shown below shows variation among three individuals with respect to 4 nucleotides - AGAT. What do you think what type of variation is this? AGAT different repeat numbers in different individuals .png Minisatellite Single nucleotide polymorphism Short Tandem Repeats Which of the following statements is TRUE about DNA matching? Typical difference between the genomes of human beings and Chimpanzees is estimated to be 25 % Typical difference between the genomes of human beings and Drosophila is   estimated to...
16. You digested a linear DNA fragment with a RE and the fragment has three recognition...
16. You digested a linear DNA fragment with a RE and the fragment has three recognition sites for the RE. How many fragments of DNA will be produced? A. three                B. four C. five D. six                     17. The RE HhaI cuts the recognition site 5’GCGC3’. The probability of having a cutting site for this enzyme is about one in every __________bp of genomic DNA. A. 100 B. 250                C....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT