5. Genetics and Biotechnology

Molecular Techniques — Quiz

Test your understanding of molecular techniques with 5 practice questions.

Practice Questions

Question 1

Which molecular technique is most suitable for identifying the presence of a specific pathogen's DNA in an animal sample, given its high sensitivity and specificity?

Question 2

In DNA sequencing, what is the role of dideoxynucleotides (ddNTPs) in terminating DNA strand synthesis?

Question 3

A researcher wants to determine if a specific genetic mutation associated with a disease is present in a herd of cattle. Which genotyping method would be most efficient for screening a large number of animals for this known mutation?

Question 4

What is the primary advantage of using molecular techniques, such as PCR and sequencing, in animal breeding programs compared to traditional phenotypic selection?

Question 5

Consider a PCR reaction where the initial DNA template concentration is $10^3$ copies. If the PCR undergoes 25 cycles, what is the theoretical final number of DNA copies?