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Okay so, so far you've probably covered a bit about DNA, how it's stored in chromosomes and what genes are for. Inheritance is now simply about how a gene that comes from your mum and a gene that comes fr...
Homologous chromosomes pair up during meiosis and contain one paternal and one maternal chromosome. So, these chromosomes are the same length, have the same centromere loci and contain the same sequence o...
The cell is initially in interphase, where the organelles double, DNA replicates and protein synthesis occurs.Prophase: Chromosomes condense, mitotic spindle begins to form, the nuclear envelope breaks do...
The dead or inactive form of the pathogen stimulates the adaptive immune system. It forces white blood cells to form antibodies against the pathogen, so that if a future invasion by the same pathogen was ...
The answer is Diffusion.This is random movement of a substance from an area of high concentration (the air) to a region of low concentration (inside the organism). In this case, the substance dif...
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