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How are bacteria genetically modified for human benefit?

First of all, the concept of genetic modification needs to be understood. Proteins are coded for by genes in the DNA of an organism, with each gene coding for a different protein. We utilise the fact that di...
DP
Answered by Declan P. • Biology tutor
13265 Views

If water is trapped between two planes on a train, and the train decelerates at 4ms^-2. What angle does the surface of the water make with the horizontal?

Draw a diagram of forces on a single particle at surface of water. Water is stationary in reference to train, thus when including decelerating force, resulting force is zero. Balance horrizontal and vertical...
OS
Answered by Oliver S. • PAT tutor
2163 Views

Calculate the additional weekly profit the business would make if it produced and sold 5000 novelty mugs every week.

Selling price of novelty mug= £4; Cost of making mug= £2; Distribution cost= £50 for every 100 mugs sold. Therefore, 1) 5000 x £4= £20,000; 2) 5000 x £2= £10,000 3) £20,000- £10,000 = £10,000; 4) 5000/100= 5...
JB
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The events that take place during interphase and mitosis lead to the production of two genetically identical cells. Explain how.

During the S phase of interphase, the DNA is replicated in a semi-conservative manner. The parent strands are seperated and each one is then used to synthesise a new daughter strand through the addition of c...
CS
Answered by Conor S. • Biology tutor
18504 Views

Define the term Covalent Bond

A covalent bond is formed by a shared pair of electrons between two atoms.
RO
Answered by Rex O. • Chemistry tutor
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