Mendels Laws Of Heredity Flashcards
Heredity–
The passing on of characteristics from parent to offspring
What are characteristics called?
Traits
Mendel’s Peas reproduced ____________.
Sexually
Gamete–
A male or female cell that can reproduce sexually to produce a zygote
Mendel’s peas were also ______________ sex cells.
self containing
What did the sex cells avoid?
Cross fertilization
What did Mendel do to make sure of parents?
Cross pollinated by hand
One by one, Mendel studies ____________.
One trait at a time
What did Mendel use for breeding?
True breeding tall AND true breeding short
True breeding only produces what trait?
Tall
Mendel crossed __________ and ___________ to produce a hybrid.
tall and short
Hybrid–
Offspring of parents with a different form of a trait
Mono–
A single trait
For the First Generation he crossed tall and short, they all came out ____________.
Tall
For the Second Generation he allowed the First Generation plants to _________________.
Self pollinate
What percentage of the Second Generation were tall?
75%
What are the three generations that Mendel experimented with?
P1, F1, F2
What are the three laws that Mendel came up with?
Rule of unit factors
Rule of dominance
Law of segregation
Genotype–
The genetic code/makeup for a sex cell
Genotypes are represented by ___________.
Two letters
These letters are called___________.
Alleles
Phenotype–
Physical appearance of the genotype
Phenotype are represented by____________.
Words
What is the Rule of Unit Factors?
Each organism has two factors that controls its traits