By Michael Anderson
Even supposing we frequently seek social and ancient records for clues to our prior, organic records probably carry an important proof of our background. The characteristics we inherit from our mom and dad and go directly to our offspring are encoded in our genes and DNA and display a lot approximately either our origins and our destiny. This quantity examines the interesting biology in the back of genetics and genetic problems. It additionally conscientiously considers the foundations of gene manipulation and genetic engineering whose capability to revolutionize medication, undefined, and agriculture is changing into more and more glaring with each new discovery.
Read Online or Download A Closer Look at Genes and Genetic Engineering (Introduction to Biology) PDF
Similar science & technology books
Detect the pliability to educate technology your means movement, Forces, and effort, as part of the Glencoe technology 15-Book sequence, offers scholars with exact and finished assurance of forces and Newton’s legislation. The powerful content material insurance integrates a variety of hands-on reports, critical-thinking possibilities, and real-world functions.
This authoritative and accomplished ebook stories contemporary advancements in house technology, expertise, functions, foreign cooperation and house legislations. Compiled from experiences ready for the United countries Committee at the peaceable makes use of of Outer area, it goals to extend know-how of the advantages that house actions supply to all international locations of the realm.
Technology doesn't exist in a vacuum and, hence, isn't taught that method. In that spirit, actions Linking technological know-how With Math, 5-8, is a hands-on consultant for preservice and inservice basic and center institution lecturers who are looking to attach technological know-how guide with different components of studyincluding visible arts, social sciences, language arts, and particularly math.
Have you ever waited till the final minute to begin your technology venture? don't be concerned, award-winning writer Robert Gardner has you lined. almost all these experiments in regards to the wilderness biome will be performed in an hour or much less! There also are a couple of longer experiments for the budding scientist and ideas for technological know-how reasonable tasks if you have extra time!
Extra resources for A Closer Look at Genes and Genetic Engineering (Introduction to Biology)
Most sexlinked traits result from genes located on the X chromosome. Few genes have been identified on the Y chromosome. Because of this, some people refer to sex-linked traits as X-linked traits. Sex-linked traits may be recessive or dominant. Recessive sex-linked traits occur more frequently in men because males have no allele on the Y chromosome to counteract the effects of a recessive allele on the X chromosome. The genotype of these males is called hemizygous. The female must inherit the recessive allele on both of her X chromosomes to fully display the trait.
The chemical makeup of genes and chromosomes had long been a mystery until 1944, when Oswald Avery discovered that DNA was the basic genetic material of the cell. The molecular structure of DNA was determined in 1953 by James Watson of the United States and Francis Crick of England. French geneticists François Jacob and Jacques Monod later determined how DNA directs protein synthesis, thereby deciphering the genetic code of the DNA molecule. Scientists working on the Human Genome Project, a study completed in 2003 that had been 13 years in the making, determined the DNA sequence of the three billion base pairs in human DNA and identified the almost 25,000 genes in the human genome.
Recognition and Cleavage Of the three types of restriction enzymes, type II is the most useful in genetic 58 The Practice of Genetic Engineering engineering. Types I and III restriction enzymes cleave DNA randomly, often at some distance from the recognition sequence. By contrast, type II restriction enzymes cut DNA at specific sites within the recognition sequence. Each time a particular restriction enzyme is used, the DNA is cut at precisely the same places in the molecule. Today more than 3,600 type II restriction enzymes are known, forming a molecular tool kit that allows scientists to cut chromosomes into various desired lengths, depending on how many different restriction enzymes are mixed with the chromosome under investigation.
A Closer Look at Genes and Genetic Engineering (Introduction to Biology) by Michael Anderson