A segment of DNA has the following sequence:TTGGATGCTGAACCTACGACA. What would the sequence be immediately after reaction withnitrous acid? Let the letters H represent hypoxanthine and Urepresent uracil.B. Let’s suppose this DNA was reacted with nitrous acid. Thenitrous acid was then removed, and the DNA was replicated fortwo generations. What would be the sequences of the DNAproducts after the DNA had replicated two times? (Note:Hypoxanthinepairs with cytosine.) Your answer should containthe sequences of four double helices.
Molecular Techniques
Molecular techniques are methods employed in molecular biology, genetics, biochemistry, and biophysics to manipulate and analyze nucleic acids (deoxyribonucleic acid (DNA) and ribonucleic acid (RNA)), protein, and lipids. Techniques in molecular biology are employed to investigate the molecular basis for biological activity. These techniques are used to analyze cellular properties, structures, and chemical reactions, with a focus on how certain molecules regulate cellular reactions and growth.
DNA Fingerprinting and Gel Electrophoresis
The genetic makeup of living organisms is shown by a technique known as DNA fingerprinting. The difference is the satellite region of DNA is shown by this process. Alex Jeffreys has invented the process of DNA fingerprinting in 1985. Any biological samples such as blood, hair, saliva, semen can be used for DNA fingerprinting. DNA fingerprinting is also known as DNA profiling or molecular fingerprinting.
Molecular Markers
A known DNA sequence or gene sequence is present on a chromosome, and it is associated with a specific trait or character. It is mainly used as a genetic marker of the molecular marker. The first genetic map was done in a fruit fly, using genes as the first marker. In two categories, molecular markers are classified, classical marker and a DNA marker. A molecular marker is also known as a genetic marker.
DNA Sequencing
The most important feature of DNA (deoxyribonucleic acid) molecules are nucleotide sequences and the identification of genes and their activities. This the reason why scientists have been working to determine the sequences of pieces of DNA covered under the genomic field. The primary objective of the Human Genome Project was to determine the nucleotide sequence of the entire human nuclear genome. DNA sequencing selectively eliminates the introns leading to only exome sequencing that allows proteins coding.
A segment of DNA has the following sequence:
TTGGATGCTG
AACCTACGAC
A. What would the sequence be immediately after reaction with
nitrous acid? Let the letters H represent hypoxanthine and U
represent uracil.
B. Let’s suppose this DNA was reacted with nitrous acid. The
nitrous acid was then removed, and the
two generations. What would be the sequences of the DNA
products after the DNA had replicated two times? (Note:
Hypoxanthine
pairs with cytosine.) Your answer should contain
the sequences of four double helices.
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