1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tangare [24]
3 years ago
5

DNA, the genetic material of living organisms, is damaged by light in the

Biology
1 answer:
insens350 [35]3 years ago
6 0

Answer:

The correct option is <em>B) ultraviolet region, especially below a wavelength of 320 nm.</em>

Explanation:

Ultraviolet light carries an enormous amount of energy in it. It is invisible to the human eye. When UV light with enormous energy and wavelength lesser than 320nm, hits the DNA, it causes changes in the structure of the DNA. Mostly, it affects the thymine nitrogenous base regions and forms pyrimidine dimers. The structure of the DNA changes on all the sites where dimers form and hence, they cannot be properly transcribed.

You might be interested in
Explain two theories of color vision in humans. How does one of them explain color deficiency?
Alborosie
<span>There are two major theories that will explain on research on colour vision. They are 1. the trichromatic theory also known as the Young-Helmholtz theory 2. opponent-process theory. These two theories explain processes that operate at different levels of the visual system.</span>
3 0
3 years ago
Which set of ecological organization levels is most likely to contain the largest variety of species?
garik1379 [7]
I believe the answer is 2: multiple ecosystems in a biome
4 0
3 years ago
What is the immediate source of energy for cells
tester [92]

ATP

Explanation:

ATP is produced in the cells and its conversion to energy is a single-step process.

6 0
3 years ago
Read 2 more answers
Explain what maria and craters are and how they formed?
xz_007 [3.2K]

Maria and craters are explained below:

<u>Explanation: </u>

  • The Moon is divided into light area lunar highlands and a dark area called Lunar Maria.
  • Lunar Maria is large, dark, basaltic plains formed on earth's moon formed by ancient volcanic eruptions.
  • Craters are formed when an impacting object falls and hits the moon's surface with greater speed and also formed as a result of the outward explosion of rocks.
  • Craters are often caused by asteroids and meteorites with the lunar surface.  
  • Unlike earth-moon does not have an atmosphere to protect itself from impacting bodies. This is the reason for more number of craters formed on earth.

7 0
3 years ago
Which of the following descriptions about RNA is not correct?
gayaneshka [121]

Answer:

The correct answer is option a. "Double-stranded regions of RNA typically take on an B-form right-handed helix".

Explanation:

Most of the native double-stranded DNA is on an B-form right-handed helix, following the structure proposed by Watson and Crick with about 10–10.5 base pairs per turn. However, double-stranded RNA does not follow this structure, and most regions have an A-form structure. The A-form right-handed helix have slightly more base pairs per turn, which makes it 20-25% shorter than B-DNA.

6 0
4 years ago
Other questions:
  • In some plants, the pistils don't form until a few days after the stamens do. How would this keep a plant from self-pollinating?
    14·1 answer
  • In the diagram below, which of the following represents the equilibrium? 1)a 2)b 3)c 4)d
    13·2 answers
  • What are peptide bonds in protein how manny are there?<br> (includes diagram)
    11·1 answer
  • The cytoplasm in a single celled organism and the circulatory system in a human both?
    6·1 answer
  • Please help with this!!!
    13·2 answers
  • The cells in a cytoplasm of the _ are called _
    14·1 answer
  • Someone please me please help meeee!!! It’s due at 2 please help me
    7·1 answer
  • In what phase of meiosis are tetrads pulled to opposite poles of the cell?
    8·1 answer
  • 10 POINTS !!!!
    5·2 answers
  • Answer quick!! <br> Short answer please
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!