Ans: E. Cas9 gene
What would a scientist need to use in the CRISPR-Cas system to introduce a small deletion into a gene?
A. CRISPR gene
B. sgRNA
C. Cas2 gene
D. donor DNA
E. Cas9 gene
Biology & Microbiology
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Charles Keeling's work demonstrated that, over the last five decades, atmospheric CO2 levels have (collectively) increased
A. true B. false
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Why does removing an overripe, mushy apple from a container of otherwise good apples help preserve the good apples?
A) Chemicals in the overripe apple stimulate the conversion of sugar to starch in the good apples. B) Ethylene production in the good apples is inhibited by the lack of ethylene production in the overripe apple. C) Gibberellins help preserve the good apples. D) The overripe apple makes ethylene gas, which can cause the good apples to ripen more quickly than usual. E) The production of cytokinins is inhibited in the remaining good apples.
Biology & Microbiology
Fourth phase of mitosis; chromosomes move toward the poles of the spindle.
What will be an ideal response?
Biology & Microbiology
A total of four ATP molecules have to be used by aerobic respiration in eukaryotic cells. Where are these four ATP molecules used?
A) All four molecules are used to start glycolysis. B) All four molecules are used to move NADH made during glycolysis into the mitochondria. C) Two molecules are used to start glycolysis, and two are used to move NADH made during glycolysis into the mitochondria. D) One molecule is used to start glycolysis, and three are used to move NADH made during glycolysis into the mitochondria. E) Three molecules are used to start glycolysis, and one is used to move NADH made during glycolysis into the mitochondria.
Biology & Microbiology