7.) Ultraviolet light can damage DNA, leading to mutations. a.) Which pairs of neighboring nucleotides is most commonly linked by UV light? b.) The covalent linkage of nucleotides alters which process, potentially leading to DNA mutations?
Added by Wanda K.
Close
Step 1
This is known as a pyrimidine dimer. The most common dimer formed by UV light is the thymine dimer, where two adjacent thymine bases become covalently linked. Show more…
Show all steps
Your feedback will help us improve your experience
Rupsa Sarkar and 100 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
QUESTION 4 Ultraviolet light damages DNA by causing A. Thymine dimers B. Covalent bonds between adjacent thymine nucleotides of a nucleotide chain C. Purine rings D. Radioactivity E. strand breaks F. A and B
Dominador T.
Which of the following is the major DNA damage induced by ultraviolet light? A) Alkylation B) Deamination of cytosine to uracil C) Depurination of nucleotides D) Dimerization of adjacent purines E) Dimerization of adjacent pyrimidines
Sri K.
The mutagenic effect of UV light is a. the alteration of cytosine bases to adenine bases. b. the formation of adenine dimers that interfere with genetic expression. c. the breaking of the sugar-phosphate backbone of the DNA molecule. d. the formation of thymine dimers that disrupt DNA replication. e. the deletion of thymine bases along the DNA molecule.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD