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Describe 2 ways mutations can occur

• DNA not copied properly before cell division: mistakes in copying; small errors - gene/point mutations • Chromosomes damaged/break: usually repair; but may repair incorrectly - large changes in may gene...

Answered by Jake C. • Biology tutor

2831 Views

State what is meant by resonance and provide some examples where it is crucial.

Resonance is where a system is forced to oscillate at a frequency close or at its natural frequency. The result of the forced oscillation produces a maximum energy transfer and, therefore, a large increa...

Answered by Zubin M. • Physics tutor

3076 Views

What is the difference between "ser" and "estar"?

Both "ser" and "estar" mean "to be". However they both have different purposes in Spanish. "Ser" is the verb used to to denote a permanent state of being, whilst &q...

Answered by Alicia B. • Spanish tutor

1901 Views

Messenger RNA (mRNA) is used during translation to form polypeptides. Describe how mRNA is produced in the nucleus.

Messenger RNA is produced via the process of transcription. DNA is transcribed into mRNA using RNA polymerase. First, the double helix structure of the DNA unravels, and the hydrogen bonds break between t...

Answered by Akanksha J. • Biology tutor

3261 Views

What is the Price Elasticity of Demand?

The price elasticity of demand (PED) measures the responsiveness of demand to a change in price. It is calculated by dividing the percentage change in quantity demand by the percentage change in price. Pr...

Answered by Jamie B. • Economics tutor

2363 Views