Describe the action of the enzyme transposase
What will be an ideal response?
Transposase makes staggered cuts in chromosomal DNA, into or out of which an IS element can insert.
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Scientists unearth a Wooly Mammoth from the Siberian Ice Sheath and discover that a eukaryotic "amoeba"-like cell is still alive. Which component of the cell membrane might contribute to maintaining the fluidity of plasma membranes under freezing conditions?
A. peripheral proteins B. high levels of long fatty acyl tails within the lipid bilayer C. high levels of unsaturated fatty acyl tails within the lipid bilayer D. absence of cholesterol E. high levels of saturated fatty acyl tails within the lipid bilayer
Which of the following disorders is the result of impaired glycosphingolipid metabolism?
A) leprosy B) glycosphingolipid anemia C) polydactyly D) tuberculosis E) Tay-Sachs disease
Which of the following statements regarding DNA replication is true?
A) Bacterial replication is faster than eukaryotic replication. B) DNA replication during embryonic development occurs at a slower rate than in the early stages of neonatal life. C) Early-replicating genes are those that are not actively transcribed. D) The rate of DNA replication is constant at all stages of development in eukaryotes. E) Cyclin-dependent kinases (Cdk) are not involved in the DNA replication process.
Put the following steps in order according to how light energy gets converted to chemical energy during photosynthesis
What will be an ideal response?