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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...

First expand (b-4)(b+5) b²-4b+5b-4*5Simplifyb²+b-20

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...

First substitute (3x) into the equation for f(x), giving f(3x) = 8 - 9x². This is then equal to -28 and so it is remains to solve the equation 8 - 9x² = -28. This can be written as 9...

First multiply the brackets to get: (2x² - 6x + x - 3), Simplify to get: (2x² - 5x - 3), This is then all multiplied by x to get: 2x³- 5x² - 3x.