GENETIC INHERITANCE : Monohybrid

Sebelum mendalam lg jom fahami apa itu
True Breeding: Organism that are homozygous for any given genotype and therefore pass it on to all their progeny in a cross with a similar homozygote.
(xpaham?? haha~maksudnya xksah la monohybrid ke dihybrid ke syarat kacut dia mesti dua2 tu homozygous~~mksudnya boleh jadi TT X tt @ TT X TT @ tt @ tt...err gitu la..kalo Tt X tt xnak la sbb Tt tu da hetero~~faham yer adek2? hehe)

Now kita pergi kepada Mendel's Experiment

Agak2 kan kenapa beliau memilih Garden Peas (Pisum sativum) ??

1) Easy to grow

2) Had short life cycle

3) Pollination could be controlled

4) Easily observable characteristics.

Now letds go to MONOHYBRID (eah excited plak)

Ok~ This one just "involve a single characteristics determined by one gene".. maksudnya pada satu2 masa ia cuma kaji satu faktor jer.. Contohnya ketinggian atau warna atau lokasi bunga~~

MENDEL's FIRST LAW = "LAW OF SEGREGATION"

"Each hereditary characteristics is controlled br two alles and segregate then pass into separate gamete"

~wink3..maksudnya contohnya hereditary characteristics lets say kita amik Height kan..ia dicontrol oleh dua allele iaitu sama ada TT @ Tt @ tt then bila cross masing2 akan berpisah kepada gamete lain kan.. Kalo TT jd T, T kalo Tt jd T , t

so paham yer~~

So phenotype ratio utk monohybrid ialah; 3:1