1. GENE
basic unit of inheritance that determines a particular characteristic
in an organism
2. ALLELE
Alternative form of a gene that occupies the same locus on the
same pair of homologous chromosomes
3. HOMOZYGOUS DOMINANT
a pair of identical dominant alleles of the same trait
4. HOMOZYGOUS RECESSIVE
a pair of identical recessive alleles of the same trait
5. HETEROZYGOUS
a pair of different alleles of the same gene
6. DOMINANT ALLELE
allele which will express itself and mask the effect other another
recessive allele paired with it
7. RECESSIVE ALLELE
allele which its effect will be masked by the dominant allele
paired with it
8. PHENOTYPE
observable physical characteristics of an organism
9. GENOTYPE
genetic content carried by an organism which determine its
phenotype and will be inherited to the next generation.
GREGOR MENDEL
THE CHARACTERISTICS AND TRAITS OF PEA PLANTS STUDIED BY MENDEL
DOMINANT-RECCESIVE
CHARACTERISTICS OF PEA PLANTS USED
-short life cycle
-the characteristics are easily distinguished and observable
-easy to grow
MONOHYBRID INHERITANCE
MENDEL'S FIRST LAW / LAW OF SEGREGATION
: In the formation of gamete,each member of the gene pair segregates into a gamete, thus each gamete only receive one copy.
-only one characteristic is used.
-Mendel chosen height of the pea plants as a characteristic
-he cross pollinated the selected pea plants by removing the anthers
from one flower, to prevent self-fertilization, and dusting pollen
from another plant onto the flower.
-pure breeds of tall and short plants are used as the parents.
resulting offspring, the F1 (Filial generation) were then self
pollinated to produce the F2 generation. This self-fertilization
continued until the traits were established for many generations.
v
click on the links below:
*Link 1
*Link 2
*Link 3
Regards@E-learning for SPM
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