May somebody help me with these? I got them wrong on my test, and am wondering if you have the correct answer?
Thanks!
Which statement best describes the role of gene expression in cells?
A.
Cells destroy the DNA of genes that they do not use.
B.
To become specialized, cells need to control the production of proteins coded for in their DNA.
C.
All genetic information in a cell’s DNA is fully expressed at all times.
D.
When cells divide in mitosis, they pass on only the genes that are required.
Cells control gene expression at which steps?
A.
transcription, mitosis, and DNA replication
B.
interphase, prophase, and metaphase
C.
transcription, translation, and the formation of the final protein
D.
mitosis, meiosis, and the formation of the final protein
B (best guess)
C (definitely)
July 1st, 2009 at 12:46 am
B (genes are NOT lost if not expressed; cells alter the genes expression rate)
and
C (control of transcription rate, translation rate and final modifications)
July 2nd, 2009 at 7:29 pm
For the first question, the answer is B.
And, for second question, it is C.
July 5th, 2009 at 7:58 am