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What is a hypothesis test

A hypothesis test is used for deciding if something is statistically significant or not. You begin stating your two hypotheses H0: Null hypothesisH1: Alternative hypothesisFor example in a linear regression,...
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Answered by David A. • Maths tutor
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Describe the process of semi-conservative replication and why is it so important?

The process of DNA replication involves unwinding the original DNA strand by the enzyme DNA helicase . This enzyme breaks the hydrogen bonds between complimentary bases forming two single strands of DNA. Eac...
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Answered by Neha M. • Biology tutor
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How do I find research for discursive writing?

Research for discursive essays can be found through websites, books and articles. Be sure to avoid using sources which are not academic (Wikipedia, etc). A good example of research for a discursive essay on ...
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Answered by Thomas B. • Russian tutor
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How does water move up the xylem vessel?

Hydrogen bonds between water molecules give water a ‘stick’ like property called cohesion. This means molecules of water are attracted to each other. Hydrogen bonds also form between water molecules and the ...
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Answered by Rehana B. • Biology tutor
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Briefly describe the different steps of mitosis (6 marks)

There are 4 clear phases in mitosis that need to occur in a specific order so that a cell can successfully copy it's DNA and then divide. They are; prophase, metaphase, anaphase telophase and cytokinesis . I...
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Answered by Ben H. • Biology tutor
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