Answer: The correct answer is-
an agent that causes a mutation in DNA.
Mutagen is an agent or a substance that causes permanent change in the genetic material of living organisms ( DNA, deoxyribonucleic acid). This process is called mutation.
A mutagen can be a chemical, physical or biological agent that causes mutation in the DNA.
Example- Physical agents such as -
- Ionizing radiations like alpha particles, gamma rays, X-rays that brings break in the DNA and cause other damages.
- Ultraviolet radiations that creates pyrimidine dimers ( T=T) and causes replication errors if damage is not repaired.
The anterior rami of the brachial plexus are the continuations of the anterior rami of spinal nerves C5-T1 . These rami emerge from the intervertebral foramina and travel through the neck. The five rami unite to form the superior, middle, and inferior trunks in the posterior triangle of the neck. Nerves C5, C6 unite to form the superior trunk; nerve C7 remains as the middle trunk; and nerves C8,T1 unite to form the inferior trunk. Portions of each trunk divide deep to the clavicle into an anterior and a posterior division. These primarily contain axons that innervate the anterior and posterior parts of the upper limb. Upon reaching the axilla, they converge to form three cords.
<span>DNA stands for deoxyribonucleic
acid. It has a double strand that contains the genes (a hereditary material) of
the organism. It was discovered by James Watson and Francis Crick. Their double-helix
structure was based on x-ray diffraction image named as Photograph 51 or Photo
51. It was taken by Raymond Gosling, a pHD student under the supervision of
Rosalind Franklin. They used this photo to determine the chemical and physical
structure of the DNA and the bond that links the genes altogether. The answer is Rosalind Franklin</span>
Answer:
A. Deposition - sediment is set down in a new place
It's C, the catalyst remains unchanged through a reaction.
