Gene conferring Strs. - Recipient chromosome Gene conferring StrR. Double-stranded DNA binds to the surface of a competent cell. 2 Single strand enters the cell; the other strand is degraded. 3 The strand integrates into the recipient cell's genome by homologous recombination. The strand it replaced will be degraded. Streptomycin-sensitive daughter cell- Streptomycin-resistant daughter cell After replicating the DNA, the cell divides. Non-transformed cells (Str®) die on streptomycin-containing medium, whereas transformed cells (Str) can multiply. FIGURE 8.19 DNA-Mediated Transformation The donor DNA in this case contains a gene conferring resistance to streptomycin (Str").
DNA and RNA
Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, deoxyribonucleic acid, is one of the natural components. Deoxyribonucleic acid is a double-stranded molecule. Watson and Crick postulated the double-stranded model of the helix. A deoxyribonucleic acid is a molecular group that carries and transmits genetic information from parents to offspring. All eukaryotic and prokaryotic cells are involved.
DNA as the Genetic Material
DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it as a genetic component. Certain organisms have different types of nucleic acids as their genetic material - DNA or RNA.
Genetics
The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents several diseases in a human being. Thus, genetics also creates an understanding of various medical conditions.
DNA Replication
The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.
How would this figure change if double-stranded DNA were incorporated into the donor cell’s chromosome?
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