Science- Genetics Flashcards
Who was Gregor Mendel?
The Father of Modern Genetics
Genetics
scientific study of hereditary
Hereditary
is the passing of characteristics from one generation to the next (parents to offspring)
Traits
specific characteristics
What did Mendel use for his experiments
pea plants
what are punnet squares?
are a tool used by geneticists to predict the possible combinations of genes that could be inherited from a particular mating.
Genotype ratio
The ratio expressed representing different genes
Phenotype Ratios
The ratio expressed representing different phenotypes (physical traits)
Behavioral traits
characteristics that consistantly descibe an organisms behavior
biochemical traits
characterisics that affect how an organism interacts with its environment
genes
sequences of DNA stored of chromosomes
Chrmosonmes
holds genetic information for the cell
allels
alternate forms of genes
Genotype
genetic properties
Phentype
physical properties
Dominanat Allele
XX, Xx
Recessive Allele
xx
Heterozygous
having two different alleles, hybrid: Xx
Homozygous
having the same alleles, same: Dominant: XX Recessive: xx
What shape is a female on a pedigree
circle
What shape is a male on a pedigree
square
What does a blacked out shape mean on a pedigree
They have that trait
What does a line connecting two people mean on a pedigree
marriage
what does a half shaded shape mean on a pedigree
they are a carrier
physical traits
traits you can see by observing something
