DNA 🧬
cells
Somatic: all cells of body
Gametes: Sperm & egg cells
cell division
mitosis
meiosis
duplicates cell content like chromosomes and divides to create 2 identical cell daughters
creates ovules & sperm
asexual reproduction
reproduction
asexual: a single organism makes copy of itself
no fusion of gametes
offspring identical to parent
only mitosis is involved
sexual: offspring comes from sperm fertilisation in ovum
fusion of nuclei of 2 gametes to form a zygote
offspring genetically different
involves meiosis
key terms
gamete: sex cells
chromosome: thread estructures of DNA located in cells nucleus
gene: comes for specific proteins
alelle: different versions of genes
genotype: the genetic constitution of an individual organism.
phenotype: observable characteristics of an organism (Eye colour, etc) or also the ones found in testing (like blood type)