CHAPTER 13.1 BIOF5 KSSM

what is the correct sequence of steps in genetic engineering?

P: inserting the desired gene into a vector

Q: Cutting out the DNA of the desired gene

R: Multiplying the copies of the gene

S: Introducing the vector into the host cell

• P, Q, S, R

• P, R, Q, S

• Q, P, S, R

• Q, R, P, S

Why is genetic modification more advantageous than traditional breeding methods?

• It lead to higher yields

• It involves the transfer of genes within same species

• The desired changes can be achieved in one generation

• The techniques involved are very simple and not costly

Which organisms can be used to produce human insulin through genetic engineering?

• Bacteria

• Viruses

• Fungi

• Protozoa

Which human hormone is the first hormone that is produced through genetic engineering in the bacterial cell?

• Oestrogen

• Thyroxine

• Insulin

• Dopamine

What are the processes involved in genetic engineering?

• I and II

• II and III

• III and IV

• i and IV

Which of the following is correct about transgenic plants?

I. are less prone to diseases

II. Are more resistant to pests

III. Produce lower yields

IV. are usually safe for human consumption

• I and II

• II and III

• III and IV

• I and IV

Which of the following statements is not true regarding the clone population of a certain plant species?

• clones produce flowers and fruit faster than their parent plants

• The number of chromosomes of the clones is the same as the parent plants

• The cones produced brought about variation to the species of the plant

• The clones produced have the same characteristics as the parent plant

What is the application of genetic engineering techniques to replace defective genes in humans?

• Gene alteration

• gene modification

• Gene replacement

• Gene therapy

Genetically modified plants such as rice are created using

• traditional breeding methods

• Recombinant DNA technology

• Special minerals in the soil

• Plant cell as precursor

Which of the following modifications can be made in tomatoes using recombinant DNA technology?

• more nutrients can be added

• The shelf life of tomatoes can be extended

• The taste of tomatoes can be made sweeter