talking a little about tropism. Tropism is the turning of an organism or part of an organism in a particular direction by growth, bending, or locomotion, in response to some special external stimulus. Hormones also regulate many tropisms. As a cannabis breeder there are three tropisms you should know about.
Geotropism
Geotropism is the sense of the direction of gravity. Seedlings use it to know which way they should grow after germination.
Gravitropism
Gravitropism is very similar to geotropism. Most cannabis branches curve upward. Auxin development causes the branch to curve upward due to cell expansion. The choice of where auxins develop is strategic for gravitropism to occur. Gravitropism causes roots to grow down.
Phototropism
Phototropism is a growth response toward the light caused by auxin stimulation of cells not exposed to light. An uneven distribution of auxins in the plant’s stem causes phototropism. Auxins gather on the side of the stem that does not receive the most light. These auxins cause the stem to bend toward the light. When the light is received the auxins are eradicated and the bending process stops.
The strain LSD from BOG shows how breeders can create lots of small crystal plenty nuggets on one plant. The grower, BOG, was featured in The Cannabis Grow Bible before he became a breeder. If you have seen his plants in our previous book then you can understand why the market started demanding seeds from him.
6
THE CODE OF LIFE
THE BASICS OF CHROMOSOMES
Chromosomes consist of a single molecule of DNA and are associated with histones. Histones are a group of simple basic water-soluble proteins that occur and are associated with DNA in the cell nuclei of eukaryotes. There are some non-histones present there too. They actually work on sorting out which parts of the DNA will be converted into RNA.
DNA are nucleic acids in which the sugar component is deoxyribose. It is a self-replicating material present in nearly all living organisms, especially in the case of chromosomes, as the carrier of genetic information and the determiner of protein synthesis. DNA stands for DeoxyriboNucleicAcid and RNA stands for RiboNucleicAcid.
Before we discuss more about chromosomes and what they are, let’s look at the process of mitosis.
MITOSIS
Mitosis is the process of division by which a cell nucleus gives rise to two daughter nuclei identical to the parent in number and size of chromosomes.
Chromosome:
A threadlike structure of nucleic acids and protein which carries a set of linked genes and occurs singly in prokaryotes and in characteristic numbers, usually paired, in the cell nuclei of higher organisms.
In mitosis a eukaryotic cell divides into two. Each daughter or progeny cell will get:
1. A complete set of genes.
2. Some mitochondria and chloroplasts.
3. Some ribosomes, some of the endoplasmic reticulum, and maybe some other organelles.
Mitosis is simply genetic code reproduction within a cell. This is all you really need to know about mitosis for breeding purposes. The actual stages of mitosis are the prophase, prometaphase, metaphase, anaphase and telophase.
The interesting point about mitosis and genetic code reproduction within a cell is that some cells carry identical gene pairs to ensure that mitosis works and that the genetic code for a trait actually gets through to its destination. There are two main types of cells with regard to the reproduction of chromosomes that we need to know about for the time being: haploid cells and diploid cells.
Haploid cells are sometimes called monoploid cells. It means that the cell only has a single set of chromosomes. The notation symbol is - (n). When the cell divides it only reproduces one version of the chromosome at a time.
Diploid cells have two of each kind of chromosome except for the sex chromosomes. The notation is - (2n). When the cell divides it reproduces one version of each chromosome at a time but the resulting
Geotropism
Geotropism is the sense of the direction of gravity. Seedlings use it to know which way they should grow after germination.
Gravitropism
Gravitropism is very similar to geotropism. Most cannabis branches curve upward. Auxin development causes the branch to curve upward due to cell expansion. The choice of where auxins develop is strategic for gravitropism to occur. Gravitropism causes roots to grow down.
Phototropism
Phototropism is a growth response toward the light caused by auxin stimulation of cells not exposed to light. An uneven distribution of auxins in the plant’s stem causes phototropism. Auxins gather on the side of the stem that does not receive the most light. These auxins cause the stem to bend toward the light. When the light is received the auxins are eradicated and the bending process stops.
The strain LSD from BOG shows how breeders can create lots of small crystal plenty nuggets on one plant. The grower, BOG, was featured in The Cannabis Grow Bible before he became a breeder. If you have seen his plants in our previous book then you can understand why the market started demanding seeds from him.
6
THE CODE OF LIFE
THE BASICS OF CHROMOSOMES
Chromosomes consist of a single molecule of DNA and are associated with histones. Histones are a group of simple basic water-soluble proteins that occur and are associated with DNA in the cell nuclei of eukaryotes. There are some non-histones present there too. They actually work on sorting out which parts of the DNA will be converted into RNA.
DNA are nucleic acids in which the sugar component is deoxyribose. It is a self-replicating material present in nearly all living organisms, especially in the case of chromosomes, as the carrier of genetic information and the determiner of protein synthesis. DNA stands for DeoxyriboNucleicAcid and RNA stands for RiboNucleicAcid.
Before we discuss more about chromosomes and what they are, let’s look at the process of mitosis.
MITOSIS
Mitosis is the process of division by which a cell nucleus gives rise to two daughter nuclei identical to the parent in number and size of chromosomes.
Chromosome:
A threadlike structure of nucleic acids and protein which carries a set of linked genes and occurs singly in prokaryotes and in characteristic numbers, usually paired, in the cell nuclei of higher organisms.
In mitosis a eukaryotic cell divides into two. Each daughter or progeny cell will get:
1. A complete set of genes.
2. Some mitochondria and chloroplasts.
3. Some ribosomes, some of the endoplasmic reticulum, and maybe some other organelles.
Mitosis is simply genetic code reproduction within a cell. This is all you really need to know about mitosis for breeding purposes. The actual stages of mitosis are the prophase, prometaphase, metaphase, anaphase and telophase.
The interesting point about mitosis and genetic code reproduction within a cell is that some cells carry identical gene pairs to ensure that mitosis works and that the genetic code for a trait actually gets through to its destination. There are two main types of cells with regard to the reproduction of chromosomes that we need to know about for the time being: haploid cells and diploid cells.
Haploid cells are sometimes called monoploid cells. It means that the cell only has a single set of chromosomes. The notation symbol is - (n). When the cell divides it only reproduces one version of the chromosome at a time.
Diploid cells have two of each kind of chromosome except for the sex chromosomes. The notation is - (2n). When the cell divides it reproduces one version of each chromosome at a time but the resulting
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