Why does double-stranded dna with a high a-t content have a lower transition temperature, tm, than double-stranded dna with a high c-g content? the fewer h-bonds for a-t-rich dsdna cause its two strands to stick together less well than g-c-rich dsdna. a-t-rich dsdna requires more energy to separate into single strands than g-c rich dsdna. elevated temperature breaks the backbone bonds between c and g bases less easily than they break the backbone bonds between a and t bases. purine bases are more susceptible to hydrolysis at high temperature than are pyrimidine bases.
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Biology, 21.06.2019 20:00
Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.
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Biology, 22.06.2019 06:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.
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Why does double-stranded dna with a high a-t content have a lower transition temperature, tm, than d...
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