Which type of spectrum can be produced by a solid, liquid, or gas? discontinuous spectrum emission spectrum absorption spectrum continuous spectrum

continuous spectrum

Explanation:

The continuous spectrum, also called thermal or blackbody, is emitted by any object that radiates heat (that is, having a temperature other than absolute zero = -273 degrees Celsius). When its light is scattered, a continuous band appears with some radiation at all wavelengths. For example, when sunlight passes through a prism, its light is scattered in the seven colors of the rainbow (where each color is a different wavelength).

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step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.