Biology, 15.04.2020 02:31 Katelyn1236
A problem known as the end-replication problem (telomere problem) exists in eukaryotic chromosomes wherein the chromosomes shorten with each round of DNA replication. Select the statements that best explain why the end-replication problem exists in eukaryotic chromosomes (select all statements that apply)
1) The RNA primer is removed in a 3' to 5' direction
2) DNA polymerase requires a primer for DNA synthesis
3) DNA ligase links the 5' OH group of one fragment to the 3' phosphate group of an adjacent fragment
4) The lagging strand is synthesized from the 3' end to the 5' end
5) DNA polymerase synthesizes DNA from the phosphate end to the hydroxyl end
Answers: 3
Biology, 21.06.2019 18:00
The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
Answers: 2
Biology, 22.06.2019 05:30
Which statement describe events that occur during interphase?
Answers: 2
Biology, 22.06.2019 13:00
Nucleus has two lobes; contains granules of lysosomal enzymes; functions in attacking parasitic worms and plays complex roles in inflammatory diseases like allergies and asthma. what blood cells are described?
Answers: 1
Biology, 22.06.2019 15:30
Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos
Answers: 3
A problem known as the end-replication problem (telomere problem) exists in eukaryotic chromosomes w...
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