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General Biology: Recombinant DNA Applications

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General Biology: Recombinant DNA Applications

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Questions and Answers

What is the main goal of gene cloning in the context of DNA manipulation?

To extract various genes from a single organism

To create artificial DNA molecules in the lab

To make thousands of copies of a single gene of interest (correct)

To combine genes from different species into a single organism

In the process of gene design, what do genetic engineers typically do to a cloned gene in order to make it functional in a new organism?

Insert the gene into the nucleus without modification

Keep the gene in its original form

Replace gene regions with enzymes (correct)

Combine genes from different sources

Which method of transformation aims to insert new genes into cells without harming them?

Electroporation

Agrobacterium (correct)

Microfibers

Gene gun

What is the purpose of backcross breeding in agriculture when dealing with transgenic plants?

To obtain high yielding transgenic lines by crossing with elite breeding lines Signup and view all the answers

What distinguishes recombinant DNA from normal DNA?

It is artificially created by combining DNA from different sources Signup and view all the answers

How does gene design differ from gene cloning in the context of genetic engineering processes?

Gene cloning creates multiple gene copies, while gene design modifies the genes for functionality Signup and view all the answers

What is the main purpose of genetically engineering golden rice?

To promote B-carotene biosynthesis Signup and view all the answers

Which industry focuses on growing commercial crops with recombinant DNA to increase resistance to herbicides?

Agricultural Industry Signup and view all the answers

What is a common feature of homologous structures in different organisms?

They show common ancestry and are similar in function Signup and view all the answers

Which type of structures are remains of a structure that is no longer functional but show common ancestry?

Vestigial Structures Signup and view all the answers

What do fossils primarily provide evidence for?

Evolutionary changes over time Signup and view all the answers

What is a key observation scientists made about embryos during their development in different animals?

All vertebrates have a post-anal tail and paired pharyngeal pouches Signup and view all the answers