Question | Answer |
Reproduction requiring two parents | Sexual reproduction |
Inherited genetic differences | Genetic diversity |
Having two sets of chromosomes | Diploid |
Having one set of chromosomes | Haploid |
Haploid sex cells | Gametes |
Union of egg and sperm | Fertilization |
Very 1st diploid cell | Zygote |
Male gamete | Sperm |
Female gamete | egg |
Cell division that produces gametes | Meiosis |
Reduction division | Meiosis 1 |
Zygote after a number of cell divisions | Embryo |
Matching pairs of chromosomes | Homologous chromosomes |
Looks like mitosis | Meiosis 2 |
Sister chromatids exchanging parts | Crossing over |
Process explaining how chromosomes line up during metaphase 1 | Independent assortment |
Picture of chromosomes | Karyotype |
Disease or disorder with a specific group of symptoms | Syndrone |
Trisomy 21 | Down syndrome |
Sperm and egg unite outside the body | External fertilization |
Sperm and egg unite inside the female | Internal fertilization |
In plants, transfer of the sperm to ovules | Pollination |
In plants, contain the sperm | Pollen |
In plants, contain the eggs | Ovules |
In plants, the male reproductive structure | Stamen |
In plants, the female reproductive structure | Pistil |
Early development of an organism | Embryonic development |
Ball of cells | Morula |
Hollow ball of cells | Blastula |
Structure when the blastula organizes into germ layers | Gastrula |
Forms skin and nervous tissue | Ectoderm |
Forms some organs and muscle | Mesoderm |
Forms the digestive system | Endoderm |
After 8 weeks the embryo becomes a ... | Fetus |
Early stages of development; structure is called an ... | Embryo |