Plant Biotechnology and Genetics: Principles, Techniques and Applications

LIFE BOX 1.1. NORMAN E. BORLAUG Norman E. Borlaug, Retired, President of the Sasakawa Africa Association and Distinguished Profe ...

in the mid-1960s, which stimulated the Green Revolution that took those countries from near-starvation to self- sufficiency. For ...

LIFE BOX 1.2. MARY-DELL CHILTON Mary-Dell Chilton, Scientific and Technical Principal Fellow, Syngenta Biotechnology, Inc.; Winn ...

proposal was funded. Grant money flowed in the wake of Sputnik. Our primary objective was to determine whether DNA transfer from ...

Syngenta a few years ago. My role also evolved. After 10 years of adminis- tration, I was allowed to leave my desk and go back t ...

...

&CHAPTER 2 Mendelian Genetics and Plant Reproduction MATTHEW D. HALFHILL Saint Ambrose University, Department of Biology, Da ...

2.1 Genetics Overview The field of genetics impacts all aspects of the science of biology, but individual disciplines within bio ...

Molecular, cellular, organismal, population, and evolutionary studies all have genetic components, and build on traditional know ...

chromosome number, and this number often defines a species as being different from another. The number of chromosomes within a n ...

In the small reproductive structures (pollen grains and ovaries), the haploidgametophyte stage is present and gives rise to hapl ...

without the benefit of knowing what was occurring within the nucleus or that chromosomes existed. Gregor Mendel’s work in geneti ...

genetics much simpler than would be the case if he’d picked plants that were normally (or even partially)outcrossers. He used pl ...

After crossing the homozygous parents and generating a heterozygous hybrid plant (F 1 ), Mendel would allow the hybrid plant to ...

results would have been different.Genetic linkage, or the fact that genes on the same chromosome tend to be inherited together, ...

subject is not needed to make an important contribution in science. To continue our discussion of plant reproduction, we must de ...

2.3.1 Mitosis The goal of mitosis is to maintain the complete number of chromosomes during cell div- ision. Mitosis is a highly ...

broken at the centromere and the two daughter cells each acquire a complete copy of the cell’s genome. 2.3.2 Meiosis Meiosis is ...

linked together on the same piece of DNA. The only changes that could occur in the DNA sequence would be caused by mutation, and ...

More advanced cytogenetic techniques to observe chromosomes have been developed since the mid-1950s, and are now being combined ...