Phospholipids are made up of
A. five-carbon rings with two nonpolar tails.
B. four fused carbon rings.
C. a phosphate, two fatty acids and a glycerol.
D. a glycerol and three fatty acids.
Answer: C
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Polytene chromosomes of Drosophila salivary glands each consist of multiple identical DNA strands that are aligned in parallel arrays. How could these arise?
A) replication followed by mitosis B) replication without separation C) meiosis followed by mitosis D) fertilization by multiple sperm E) special association with histone proteins
Which of the following could use reverse transcriptase to transcribe its genome?
A) ssRNA B) dsRNA C) ssDNA D) dsDNA
Which of the following is not a function of the nuclear division process of mitosis in eukaryotic organisms
1.increase in body size 2.tissue repair in multicelled eukaryotes 3.asexual reproduction 4.sexual reproduction
Enzymes increase the rate of a reaction by increasing molecular motion, thereby providing kinetic energy to drive the reaction.
Answer the following statement true (T) or false (F)