What is mrna?
will give !

a. a dna strand that cannot be transcribed

b. an rna copy of a dna gene

c. a dna sequence at the start of a gene

d. an rna segment that does not code for proteins

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation