Chantel dropped a tiny spot of ketchup on her pants during lunch. Even though her teacher was able to completely remove the spot, Evelyn is crying hysterically and says that she wants to go home because her outfit is ruined. Her behavior demonstrates the characteristic of preoperational thought known as .
A. Irreversibility
B. Animism
C. Egocentrism
D. Conservation

A. Irreversibility

Explanation:

Based on the scenario being described it can be said that her behavior demonstrates the characteristic known as irreversibility. This refers to a stage in early child development in which the child believes that certain actions/events cannot be reversed or undone, such as spilling ketchup on her dress. Chantel believes that the dress cannot be fixed and is why she begins to cry uncontrollably.

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.