| A | B |
|---|
| gamete | haploid cell that participates in fertilization by fusing with another haploid cell |
| binary fission | asexual reproduction that produces identical offspring |
| gene | part of chromosome that codes for a protein |
| chromosome | place where genes are located |
| chromatid | one of the pairs of strands of DNA that makes up a chromosme |
| centromere | region joining 2 chromatids |
| homologous chromosome | a chromosome pair which are similar. |
| diploid | cell with 2 sets of chromosomes |
| haploid | 1 set of chromosomes |
| zygote | fertilized egg cell |
| autosome | chromosome that does not determine sex |
| sex chromosome | chromosome that determines sex |
| karyotype | arrangement of an individuals chromosomes |
| cell cycle | sequence of growth and divison |
| interphase | period between mitotic divisions |
| mitosis | cell division of the nucleus |
| cytokinesis | division of the cytoplasm |
| cancer | abnormal cell growth disease |
| spindle | structure that moves chromosomes during cell divison |
| meiosis | produces 4 haploid cells |
| crossing over | exchange of reciprocal DNA |
| independent assortment | random distribution of chromosomes |
| spermatogenesis | production of sperm |
| sperm | male gamete |
| oogenesis | production of female gametes |
| ovum | egg cell |
| asexual reproduction | involves only one parent |
| clone | organism tha is identical to its parent |
| sexual reproduction | gametes unite to form a zygote |
| life cycle | lifespan of an organism |
| fertilization | haploid gametes join to form a zygote |
| sporophyte | diploid stage of life cycle |
| spore | a restng reproductive haploid cell |
| gametophyte | haploid stage of life cycle |
