Molecular Biology: The Foundation of Modern Medicine

DNA (deoxyribonucleic acid) is the molecule that carries genetic information in all living organisms. It is a double-stranded molecule composed of four different types of nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G).

Transcription is the process by which DNA is copied into RNA. It is carried out by an enzyme called RNA polymerase, which reads the DNA sequence and synthesizes a complementary RNA molecule.

Translation is the process by which RNA is used to synthesize proteins. It is carried out by ribosomes, which read the RNA sequence and assemble the corresponding amino acids into a protein chain.

The genetic code is a set of rules that determines the sequence of amino acids in a protein. It is based on the sequence of nucleotides in an RNA molecule, which is transcribed from a DNA molecule.

A mutation is a change in the DNA sequence, which can lead to a change in the RNA sequence and/or the protein sequence.

Transversion is not a type of mutation. Substitution, deletion, and insertion are all types of mutations that can occur in DNA.

DNA repair is the process by which cells repair damaged DNA. It is carried out by a variety of enzymes, which can repair different types of DNA damage.

Homologous recombination is not a type of DNA repair. It is a process by which genetic information is exchanged between two similar DNA molecules.

Mitosis is the process by which cells divide into two identical daughter cells. It is a continuous process that can be divided into four stages: prophase, metaphase, anaphase, and telophase.

Meiosis is the process by which cells divide into four haploid daughter cells. It is a two-stage process that involves two rounds of division: meiosis I and meiosis II.

Cytokinesis is the process by which a cell divides into two unequal daughter cells. It occurs after mitosis or meiosis and involves the division of the cytoplasm and cell membrane.

Binary fission is the process by which bacteria divide into two identical daughter cells. It is a simple process that involves the replication of the DNA molecule and the division of the cell into two equal parts.

Budding is not a type of cell division. It is a process by which some yeasts and bacteria reproduce. In budding, a new cell grows out of the side of the parent cell and eventually detaches to form a new individual.

Genetics is the study of genes and heredity. It is a branch of biology that deals with the transmission of traits from parents to offspring.

Genomics is the study of the entire set of genes in an organism. It is a branch of genetics that deals with the structure, function, and evolution of genomes.