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Explain the mechanism of meiosis.

Meiosis is a specific type of cell division. Unlike mitosis, which results in 2 identical copies of the mother cell, meiosis creates 4 daughter cells each containing half of a normal gentic material (we r...

MG
2252 Views

Calculate the PH of 32 mmol of HCl in 75cm^3 solution. Assume HCl fully dissociates.

32 mmol = 0.032 mol

75cm= 0.075dm3

n = c x v    so   c = n / v

c = 0.032mol/0.075 dm3 = 0.426moldm-3

pH = -log[H+]

pH = -lo...

AP
2912 Views

How is the heart beat controlled?

Cardiac muscle is myogenic i.e has the ability to contract naturally, without external stimuli, such as action potentials arriving via nerves. For the whole heart to contract in an organi...

CB
Answered by Cezar B. Biology tutor
2745 Views

To what extent does the impact of the First World War explain the outbreak of 2 revolutions in Russia in 1917?

The First World War displayed the ineffectiveness and under preparation of the Russian army as by 1917 there were c.4 million Russian soldiers dead and c.3 million wounded; this caused resentment towards ...

EP
Answered by Ellie P. History tutor
5158 Views

Derive the following with respect to x1: y=(x1*x2)/(x1+x2).

y is a function of x1 and x2. We are asked to derive y with respect to x1, meaning that x2 remains constant. 

Note that y' is the deriva...

TK
Answered by Thaleia K. Maths tutor
7915 Views

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