All of the sun’s energy is produced in its core through: a. fusion b. fission c. hydrolysis d. hydrogenation

a. fusion

Explanation:

The Sun's energy is produced at its core through a process that is referred to as nuclear fusion. The type of nuclear fusion involved in the production of energy at the Sun's core is known as Hydrogen fusion.

Hydrogen fusion is a nuclear fusion reaction whereby two atoms of hydrogen form or produce four hydrogen nuclei. These four hydrogen nuclei come together or fuse together to form one helium atom. During this reaction, some mass of hydrogen is changed or converted to light energy in the Sun.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

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.