1 Flashcards
a
reproduction
- bio process by which new individual organisms (offspring) are produced
- fundamental feature of all known life
sperm cells
characteristics
- unique haploid genome
- small
- motile via flagella
- few organelles has mitochondria (neck) and centrioles
- acrosomal vesicle (golgi structure to bind and penetrate the egg coat)
functions
- get to egg and fuse
- activate egg and contribute 1/2 unique diploid genome of new organism
egg cells
characteristics
- large
- non-motile
- abundant stored raw materials + machinery
- yolk for energy
- totipotent
- haploid n genome
- egg coat
- cortical granules (golgi structures specialized to prevent polyspermy)
functions
- contributes 1/2 of diploid genome to new organism
- mechanisms for sperm recog, binding fusion
- provides raw materials to carry out early development without genomic input from zygote
genes involved in sex determination
mullerian/wolferian duct