BIO152H5 Chapter Notes - Chapter 13: Sporophyte, Allosome, Sexual Reproduction
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Chapter 13: meiosis & sexual life cycles. Tuesday, december 9, 2014. Genes are coded info in the form of hereditary units. Locus: a gene"s location along the length of a chromosome. Asexual reproduction: generation of offspring from a single parent. Clone: a group of genetically identical individuals. Sexual reproduction: 2 parents give rise to offspring that has unique genes inherited. Genetics: study of hereditary. Fertilization & meiosis alternate in sexual life cycles. Sets of chromosomes in humans. Karyotype: display of chromosome pairs arranged by size &shape. Sex chromosomes: x & y chromosomes. >> other chromosomes are called autosomes. Two sets of 23 chromosomes (maternal & paternal) Diploid cells: cells with 2 chromosome sets - - - > 2n (where n is the haploid number) Look at figure 13. 4 *** Gametes contain a single set of chromosomes, therefore it"s a haploid cell (n). Behaviour of chromosome sets in the human life cycle. Fertilization: union of gametes.
