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Biology Discussion
Mutations are the original source of genetic variation. Explain how mutations can be either beneficial or harmful then provide an example for each. Next identify a disease, which is caused by a mutation, and then describe the biological basis of your chosen disease. In your response be sure to note the exact disease causing mutation.
What is meant when it is said that organisms of the phylum Annelida are vascular organisms?
Explain the polymerase chain reaction process. Use terms primer, template, DNA, nucleotides, and DNA polymerase.
Define the terms: Autotroph and heterotroph. Describe the differences between photoautotrophs and chemoautotrophs and chemoautotrophs and heterotrophs with regard to their energy source and their role in ecosystems. Give examples for each kind of ..
You have two true-breeding tomato plants. One is tall (T) with a bristly stem (B) and white flowers (r). The other is short (t) with a smooth stem (b) and red flowers (R).
Describe the ecosystem in Pennsylvania in terms of plant life, animal life, and geology. What populations and communities are present? How dependent is Pennsylvania on this ecosystem? What are the limiting factors of the ecosystem?
Some inhibitory postsynaptic potentials (IPSPs) are the result of Cl- entering the cell through a chloride channel. Other IPSPs are caused by the opening of K+ channels. How could movement of the potassium ion result in hyperpolarization of the po..
What is the name of the elongated bundles of contractile proteins that fill the cytoplasm skeletal muscle fibers
If Mendel chose corn instead of pea plants to conduct his first experiments, what is the maximum number of traits he could have documented in breeding experiments in order to establish his law of segregation (each trait is determined by two factors) ..
if, in the same cell, the Golgi membrane is 8 times the area of the plasma membrane, what is the ratio of Golgi membrane proteins to other proteins in the ER?
Does antisense RNA prevent translation or transcription? Explain you answer and why do housekeeping genes have to be hypomethylated and hyperactylated?
Describe how RFLPs can be used in DNA fingerprinting? How does this compare to the use of VNTRs in DNA fingerprinting?
I need help to determine one significant way in which root nodules, filled with nitrogen-fixing bacteria, are similar tocancerous tumors in humans and one significant way in which theyare different.
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