A. are required for the expression of specific protein-encoding genes.
B. bind to other proteins or to a sequence element within the promoter called the TATA box.
C. inhibit RNA polymerase binding to the promoter and begin transcribing.
D. usually lead to a high level of transcription even without additional specific transcription factors.
E. bind to sequences just after the start site of transcription.
Answer: B
Answer:
star
Explanation:
a star forms with hydrogen
The process whereby the binding of antibodies to antigens causes RBCs to clump is called: agglutination.
Answer:
exposure to ultraviolet radiation is a correct answer.
Explanation:
Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.
Ultraviolet radiation is absorbed by the pyrimidine bases( cytosine and thymine in DNA) and result in the formation of covalent bonds between the succeeding bases.
The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.
The correct option is deposition.
Deposition is the process by which sediments, soils and rocks are added to a particular rock which result in successive layers in the rock. Deposition is usually brought about by the action of wind, water, ice and gravity. These forces brings on sediments which are added to the rock layers.
