Epigenetic inheritance may depend on all the following except:
A. the DNA sequence from a parent.
B. inherited chemical modification of parental nucleotides.
C. inherited nucleosome structure of chromosome.
D. inherited chemical modification of parental proteins.
A
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In eukaryotes, gene amplification is tolerated well when the amplified gene encodes for RNA products. However, it is rare or detrimental when the product is a protein. Why would it be advantageous for the cell to amplify the RNA-producing genes and not the protein-producing ones?
A) It allows for the manufacture of many RNA molecules when needed in the cell. B) Proteins are amplified from a single mRNA molecule. C) More RNA than protein is needed by the cell. D) RNAs are amplified from a single protein molecule. E) both choices A and B
Avery, MacLeod, and McCarty showed that DNA was the transforming principle by demonstrating that mice survived
when injected with a mixture of dead virulent bacteria and live nonvirulent bacteria that were treated with a DNA degrading enzyme. If RNA was the genetic material, what would have been the effect on the mice? Why?
What will be an ideal response?Which of these is Not a Lipid?
a. cholesterol b. RNA c. steroids d. phospholipid e. wax
What are the functions of helper T cells?
What will be an ideal response?