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How can I understand the difference in ploidy between meiosis and mitosis?

Instead of trying to memorise the facts by heart, the differences between meiosis and mitosis become much easier to understand if we reason on what the purpose of each process is. The key is that: – MITOSIS ...
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Answered by Alisia F. • Biology tutor
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Describe the nature of the genetic code

Genes are regions of DNA that code for proteins. They are transcribed into mRNA and translated into proteins at the ribosome. Genes are formed of nucleotides, or the bases that are found in DNA (Adenine, A, ...
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Answered by Charlotte L. • Biology tutor
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How are ABO blood groups genetically transmitted?

The ABO blood group is an example of codominance and multiple alleles. Unlike other characteristics which are determined by 2 alleles, blood group is determined by 3 alleles. The allele I A corresponds to bl...
Answered by • Biology tutor
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Explain how the properties of water, that are essential to living things, arise from the 
dipolar nature of water

a oxygen in water ‹ slightly › negatively charged and hydrogens ‹ slightly › positive b hydrogen bonding due to the dipolar nature c water molecules are cohesive due to hydrogen bonding d cohesion useful in ...
Answered by • Biology tutor
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What are lipoproteins and what is their function?

Lipoproteins are proteins that transport hydrophobic lipids in water based (polar) solutions such as blood. The two main types you need to know about for the IB biology course as part of option D includes HD...
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Answered by Hannah L. • Biology tutor
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