A) Which of the following best describes how a liver cell and skin cell have the exact same DNA sequence and yet look different and perform
different functions? (1 point)
The cells mutate during transcription.
The proteins are expressed differently in each cell.
The cells discard the DNA that is not in use.
The tRNA uses a different sequence in each cell during transcription.
3 answers
The proteins are expressed differently in each cell.
A)
Stella described protein synthesis as a process that makes the necessary proteins for the human body to function. She explained the process in
the following steps.
1. DNA is transcribed into mRNA.
2. Amino acids form a chain.
3. The amino acid chain is folded into a protein in the endoplasmic reticulum.
What step did Stella miss in her explanation?
(1 point)
mRNA is translated into amino acids.
DNA is replicated into two daughter cells.
Polypeptide chains express gene traits.
tRNA delivers the DNA to the ribosome.
Stella described protein synthesis as a process that makes the necessary proteins for the human body to function. She explained the process in
the following steps.
1. DNA is transcribed into mRNA.
2. Amino acids form a chain.
3. The amino acid chain is folded into a protein in the endoplasmic reticulum.
What step did Stella miss in her explanation?
(1 point)
mRNA is translated into amino acids.
DNA is replicated into two daughter cells.
Polypeptide chains express gene traits.
tRNA delivers the DNA to the ribosome.
mRNA is translated into amino acids.