A codon is a segment of DNA that codes for one particular protein, it consists of 3 nucleotides.
Hemophilia is a genetic disorder that inherited by X-linked recessive pattern. A daughter needs 2 genes to have the disease(or 1 gene to become carrier) but a son only needs to get 1 defect genes from his mother(X gene in male must come from mother). If Xh defected gene and X normal genes, the <span>punnett square </span>would be:
Father(XY)
X Y
Mother Xh XhX XhY ------>XhX= carrier , XhY= sick
(Xh X) X XX XY ------>healthy
To make foods such as bread, yoghurt and cheese.
B. Gametophytes produce diploid gamers (the gametes are haploid)
secondary succesion takes place