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How is a gene related to the sequence of nucleotides?
Genes are segments of DNA. DNA is made up of polymer of nucleotides joined together. When there is an alteration in the sequence of nucleotides, gene mutation occurs.
How many nucleotides are present in the DNA sequence?
The number of nucleotides in a DNA sequence can vary, but in general, a human DNA molecule contains about 3 billion nucleotides.
How are genes related to the structure of DNA?
Each DNA double helix is divided into a certain number of genes, marked by a specific start sequence-- sort of like chapters in a book. One whole piece of DNA is referred to as a "chromosome." Humans have 2 sets of 23 of these, for a total of 46. Although estimates vary, there are between 20,000 and 100,000 genes in the entire human "genome."
Are genes on DNA and DNA on chromosomes?
Yes, genes are segments of DNA located on chromosomes. Chromosomes are structures composed of DNA and proteins that carry the genetic information of an organism, including genes that provide instructions for protein synthesis and other cellular processes.
What genes are DNA and chromosomes?
DNA is composed of genes, which are segments of DNA that code for specific traits or functions in an organism. Chromosomes are structures made up of tightly-coiled DNA and associated proteins, containing many genes organized along their length. Genes are the units of heredity carried on chromosomes that determine an organism's traits.
How does the DNA of humans and the DNA of animals compare?
They have the same nucleotides (A, T, C, G) and structure (double helix and chromosomes), and have a lot of the same genes, but a lot of genes differ, also.
What types of nuclotides are in human DNA?
There are 4 different types of nucleotides in a humans DNA!
Which polymers code for an organism trait?
The trait of an organism is coded for by genes, which are segments of DNA. These genes encode for specific proteins or traits, not polymers. Polymers are large molecules made up of repeating subunits, such as nucleotides in DNA or amino acids in proteins.
How does DNA contain instructions for traits?
The DNA code consists of specific sequences of DNA nucleotides that code for specific amino acids. A sequence of three nucleotides are called a codon, and code for one specific amino acid. The sequence of amino acids determines the structure and function of the proteins, which determine the cells' activities and hereditary traits.
What is the chemical structure in the human genes?
DNA
In 2003 what was achieved by the human genome project?
The human genome project began in 1990, and this project was to find the complete sequence of genes in a human. The goal of this project was to identify all genes in the human body, this meant as much as mapping out 3 billion base pairs of nucleotides in our DNA. It was completed in 2003 and this now allows for further development in biological diseases and also gives us a thorough analysis in human Biology.
What are the differences between human DNA and plants DNA?
Every strand of DNA consists of four nucleotides: Adenine, Thymine, Guanine, and Cytosine. The nucleotides are the same for every organism both humans and plants, but the order in which the nucleotides are placed is different. It can be compared our alphabet. Our alphabet has 26 symbols however their meaning is based on how they are arranged.
