The study of proteomics is more complex than the study of genomics because
A)proteins are more complex than DNA.
B)proteins are harder to sequence than DNA.
C)there are 20 amino acids that comprise proteins and only 4 nucleotides that compose DNA.
D)scientists understand less about amino acids than they do about nucleotides.
E)each cell in an organism has exactly the same DNA but different cell types each produce different types of proteins.

Question

Quizplus · Accepted Answer

Each cell in an organism has exactly the same DNA, but different cell types each produce different types of proteins. This is because the expression of genes, which are the units of DNA that code for proteins, is regulated in a cell-type-specific manner. This regulation is controlled by a variety of factors, including the presence of transcription factors, which are proteins that bind to DNA and promote or repress the transcription of genes.

The Study of Proteomics Is More Complex Than the Study