Using DNA sequencing on a cloned DNA segment, you recower...

Name: Problem 6, Chapter 13: Concepts of genetics
Uploaded: 2021-10-08T23:09:12-08:00
Duration: 1 min 41 s
Channel: Joanna Quigley
Description: Using DNA sequencing on a cloned DNA segment, you recower the nucleotide sequence shown below. Docs this segment contain a palindromic recognition sequence for a restriction cnxyme? If 90 , what is the docible-stranded sequence of the palindrome, and what enayme would cut at this sequence? (Consult Figure 13-2 for a list of restriction-enzyme recognition sequences.) CAGTATCCTAGGCAT

Using DNA sequencing on a cloned DNA segment, you recower the nucleotide sequence shown below. Docs this segment contain a palindromic recognition sequence for a restriction cnxyme? If 90 , what is the docible-stranded sequence of the palindrome, and what enayme would cut at this sequence? (Consult Figure 13-2 for a list of restriction-enzyme recognition sequences.) CAGTATCCTAGGCAT

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Key Concepts

Restriction Enzymes

Restriction enzymes are proteins that bind to specific short DNA sequences, often palindromic, and cleave the DNA at or near these sites. This property makes them essential tools in molecular biology for cutting DNA into manageable fragments for cloning, mapping, and other analyses.

Complementary Base Pairing

Complementary base pairing is the rule by which nucleotides in DNA pair (adenine with thymine and guanine with cytosine), allowing the formation of a stable double helix. This pairing ensures that one strand is the reverse complement of the other, a feature that underlies the existence of palindromic sequences.

BamHI Restriction Enzyme

BamHI is an example of a restriction enzyme that recognizes a specific palindromic sequence in DNA—namely, the 5?-GGATCC-3? site (with the complementary strand being 3?-CCTAGG-5?). Its specific cleavage within this sequence makes it widely used in recombinant DNA technology.

DNA Palindromic Sequences

A palindromic sequence in DNA is one where the nucleotide sequence on one strand reads the same in the 5? to 3? direction as the complementary strand does when written in the 5? to 3? direction. This inherent symmetry is crucial because many restriction enzymes recognize these sequences due to their complementary base pairing.

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