Practice Questions

TLS Online TPP Program

#Question id: 4255

How might a single base substitution in the sequence of a gene affect the amino acid sequence of a protein encoded by the gene?

#Unit 3. Fundamental Processes

Only a single amino acid could change, because the reading frame would be unaffected.
The amino acid sequence would be substantially altered, because the reading frame would change with a single base substitution.
All amino acids following the substitution would be affected, because the reading frame would be shifted.
It is not possible for a single base substitution to affect protein structure, because each codon is three bases long.

More Questions

TLS Online TPP Program

#Question id: 12327

#Unit 10. Ecological Principles

Which of the following is the most accepted hypothesis as to why invasive species take over communities into which they have been introduced?

TLS Online TPP Program

#Question id: 10245

#Unit 10. Ecological Principles

Which of the following exemplifies an evenly spaced distribution?

TLS Online TPP Program

#Question id: 26413

#Unit 3. Fundamental Processes

Which of the following positions is more prone to tautomerism

TLS Online TPP Program

#Question id: 5656

#Unit 5. Developmental Biology

What is the cortical reaction, and why is it important?

TLS Online TPP Program

#Question id: 11580

#Unit 7. System Physiology – Animal

Melatonin is secreted by the ________.