DNA+technology+DB

DNA Technology Human Genome Project (p454-455) (1) How many bases (base pairs) are their in the human genome? There are three billion base pairs in the human genome.

(2) How long did it take to determine the identity and sequence of all of the bases? It took 13 years.

(3) What is the primary source of DNA? and why? The primary source of DNA was sperm because it has a higher ratio of DNA to protein than other cells.

(4) What is a SNP? A SNP is a single nucleotide polymorphism.

(5) How many genes in the human genome? Humans have 25,000 genes.

(6) What can we learn if we compare the genomes of species? We can learn about evolution and how species evolved from eachother.

(7) How similar is the human genome to the chimpanzee genome? The human genome and the chimpanzee genome are 99% alike.

(8) How similar is the human genome to the mouse genome? The human genome and the mouse genome are 88% alike.



Genetic Engineering (p460-463) (9) Define: transgenic organism- a organism that has a foreign gene in its cells

(10) Describe how we can use transgenic bacteria. Transgenic bacteria is used to create insulin, human growth hormone, hepatitus B vaccine and other products.

(11) Describe how we can use transgenic plants. We can use transgenic plants to decrease soil erosion and create higher quality food. Agriculture is more efficent and safe.

(12) Describe how we can use transgenic animals. We can breed animals such as fish, cows, pigs and rabbits to be bigger in size and thus create more food. The animals may also be injected to avoid getting certain diseases.