Challenging Questions

Question 1

Using your knowledge of biology. Suggest how a change in the sequence of bases in DNA transcribe to rRNA in the mutated cultures resulted in a decrease in protien synthesis

Answer 1

Change in the sequence may change the structure of the Ribosome.
Translation can no longer occur

Question 2

Explain the importance of duplication mutations in evolution

Answer 2

Beneficial mutation can occur in one of the copies of the gene
The other gene cab still be expressed to produce its protien.

Question 3

In a further experiment bubbling oxygen through the water culture solutions was observed to increase the uptake of potassium by the barley roots. Explain this

Answer 3

Oxygen allows for more aerobic respiration
Aerobic respiration produces more ATP
For more active uptake of K