Multiple Choice
The expression of the Pax-6 gene when vertebrate and fruit fly versions of the gene are exchanged between these animal groups illustrates __________.
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18. Biotechnology
Introduction to DNA-Based Technology
Multiple Choice
In genetic engineering, sticky end refers to __________.
A
a technique for finding a gene of interest within a nucleus without destroying the cell
B
the ability of plasmids to stick to a bacterial cell wall and thus be taken up into the bacterium
C
the site on mRNA that sticks to the DNA during transcription
D
None of the listed responses is correct.
E
short bits of single-stranded DNA left at the end of DNA molecules cut by restriction enzymes
Verified step by step guidance1
Understand that 'sticky ends' are a concept in genetic engineering related to DNA manipulation.
Recognize that restriction enzymes are used to cut DNA at specific sequences, creating fragments.
Learn that when restriction enzymes cut DNA, they often leave overhanging single-stranded ends, known as 'sticky ends'.
These 'sticky ends' can form hydrogen bonds with complementary sequences, facilitating the joining of DNA fragments.
Conclude that 'sticky ends' are short bits of single-stranded DNA left at the end of DNA molecules cut by restriction enzymes, which is not directly described by any of the given options.
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