X and Y Chromosomes. Sex Chromosomes Mammals use a chromosomal method of determining sex: XX is female and XY is male. Birds use a ZW system: ZZ is male.
Genetic Regulation Lecture 6. OVERVIEW OF GENETIC REGULATION Regulation of gene expression is an essential feature in maintaining the functional integrity.
"Biology is the only science in which multiplication means the same thing as division."
Lecture 3 What is a gene, how is it regulated, how is RNA made and processed, how are proteins made and what are their structures?
Lecture 3
T G A C T T T C C C C G G A A A A A C T G A A A G G G G C C T T T T.
