(14) If 2,000 protein-coding genes are essential in humans and a similar number

Question

(14) If 2,000 protein-coding genes are essential in humans and a similar number exists in mouse, approximately what percent of the mouse protein-coding genes will cause lethal phenotype when they are knocked out? A) 1%. B) 2%. C)8%. D) 20%. E) More than 20%. (15) Analogous to the genetic code, the particular constellation of biochemical modifications to histone tails that dictates a particular chromatin state is dubbed the A) Protein code B) Post-translational code C) Amino acid code D) Histone code E) None of the above

Explanation / Answer

14) 1%

15) Histone code. its a hypothesis that entails what structural modification of histone ends regulates the gene expression in what way- does it activate it or represses it

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