Please enable JavaScript.
Coggle requires JavaScript to display documents.
Samuelson Genetics - Coggle Diagram
Samuelson Genetics
Vocab Words
DNA (Deoxyribonucleic Acid)
The genetic material that carries information about the organism and is passed from parent to offspring.
Double Helix
Describes the twisted, ladder-like shape of DNA molecules.
Deoxyribose and Phosphate
These two molecules alternate to form the twisted sides of the DNA molecule
Nitrogen Bases
The “rungs” of the ladder Guanine-Cytosine Adenine-Thymine
Chromosome
A wrapped up strand of DNA that contains genetic information in the form of genes.
Gene
A section of DNA that controls a trait
Allele
Different forms of a gene.
Chromosome Pairs
We receive 1 set of chromosomes from each parent that contain the same genes in the same positions.
Chromosome Theory of Inheritance
Theory that says genes are carried from parent to offspring on Chromosomes.
DNA Replication
A process where the DNA molecule splits apart to make two identical copies.
Alelle and Gene
Genes are a catergory
Alellles are specific
Heredity
The passing of physical characteristics from parent to offspring
Homozygous (purebred)
An organism with two of the same alleles for a trait (same)
Heterozygous (hybrid)
An organism with two different alleles for a trait.
(different)
Genotype
Genetic makeup or allele combinations
Phenotype
Physical appearance or visible traits
Dominant Allele
An allele whose trait always shows up if that allele is present
Recessive Allele
An allele that is hidden if the dominant allele is present
Punnett Square
A chart which shows all of the possible combinations of alleles that result from a genetic cross.
Big Ideas
DNA parts
Vocab
Specific (my words)
Punnet squares
Alleles and Genes
Genotype and Phenotype
Mendel
P generation
1ts gen talll and short pea plant.
F1 Generation
gen. after p gen. 4/4 were tall pea plants
F2 Generation
gen. after F1 3/4 tall 1/4 short
Punnet squares are not always accurate
The larger number of offspring the more accurate the punnet square will be
DNA parts
Nitrogen bases
Adenine ad Thymine
A and T always pair
Cytosine and Guanine
G and C always pair
Deoxyribose sugar and Phosphate
Asexual reproduction is one parent
Sexual production requires two parents.