Describe the mutagenic action of the following two mutagens: 5-bromouracil and ultraviolet light
What will be an ideal response?
The mutagen 5-bromouracil is an analog of thymine, which anomalously pairs with guanine. Ultraviolet light causes thymine dimers.
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A second level consumer is indicated by
a. A. b. B. c. C. d. D. e. E.
The formation of carbonic acid in the oceans directly results in
A) increased sea surface temperatures. B) inhibition of shell growth in marine animals. C) increased marine biodiversity. D) increased pH.
________ are insoluble polymers of aromatic alcohols that primarily are found in woody tissues
Fill in the blank with correct word.
Where are the ribosomes that translate proteins to be secreted from the cell?
A) attached to the Golgi apparatus B) in the nucleolus C) attached to the rough endoplasmic reticulum D) in the cytosol