21 terms

Glencoe Biology Genetics Chapter 10 Section 2

Glencoe biology chapters 10, 11, 13 genetics
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Gregory Mendel
Father of genetics
Principle of Dominance
Whenever you have 2 different characteristics present for a single trait, 1 will always dominant over the other one
Principle of Segregation
When 2 characteristics present for a trait separate from 1 another and go into different sex cells
Genetics
Science of heredity
Inheritance or Heredity
Passing of traits to the next generation
Self-fertilization
Occurs when a male gamete within a flower with a female gamete in the same flower
Cross-pollination
Can happen by hand by transferring a male gamete from a flower pea plants to the female reproductive organ in a flower of another pea plant
Parent generation
Purebred X Purebred; Result is hybrid
F1 generation
The offspring(Result) of the parent generation; The result is 3:1
F2 generation
THe offspring(Result) of F1 generation;
Allele
Alternative form that a single gene may have for a particular trait
Dominant
CAPITAL LETTER LIKE THIS FOR EX. (RR)
Recessive
lower case letter like this for ex. (rr)
Homozygous
Organisms with two of the same alleles for a trait
Heterozygous
Ex. (Rr); 2 different alleles for a trait
Genotype
An organism's allele pairs
Phenotype
Observable characteristic that is showed as a result of an allele's pair
Hybrids
Heterozygous organisms
Law of Independent Assortment
Random distribution of alleles occurs during gamete formation
Dihybrid Cross
9:3:3:1
How can the number of offspring will match the results predicted by the punnett square?
The larger the number