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Reproduction Vocab
This is a list of some of the major vocab in the reproduction unit.
| Question | Answer |
|---|---|
| Asexual Reproduction | Making exact copies of an organism (budding, regeneration) |
| Nucleotide | bond together to make nucleic acids such as DNA |
| Replication | making an exact copy of something |
| Mitosis | one cell dividing into two twin cells |
| Cancer | uncontrolled cell mitosis |
| Meiosis | creation of sperm & egg cells that are all different from one another |
| Diploid (2n) | a cell with a full set of chromosomes (46 chromosomes for humans) |
| Haploid (n) | a cell with half of a set of chromosomes (23 chromosomes for humans) |
| Gamete | sex cell (sperm or egg) |
| Scrotum | controls the temperature of the testes for sperm production |
| Prostate Gland/seminal vesicles | secrete (create) fluid that mixes with the sperm to aid in travel |
| ovary | creates eggs, estrogen and progesterone |
| uterus | builds and sheds its lining during menstruation; site where the baby develops |
| oviduct/fallopian tube | tube where egg travels from ovary to uterus |
| menstruation | shedding of the uterine lining |
| ovulation | release of the egg from the ovary |
| fertilization | sperm and egg meet to make a zygote |
| zygote | the one diploid cell created from fertilization |
| cleavage | a zygote dividing by mitosis to become many cells during development |
| differentiation | cells using only certain parts of their 46 chromosomes and therefore begin to look and function differently |
| amniocentesis | a test that takes amniotic fluid to test fetal cells for genetic abnormalities |
| egg | the female haploid gamete |
| embryo | stage of fetal development after differentiation and before the fetus. |
| estrogen | female hormone that provides negative feedback to FSH and also promotes the thickening of the uterine lining. |
| external fertilization | sperm and egg meet outside of the body...often occurs in fish |
| fetus | stage of fetal development after the embryo and before birth of the baby |
| internal fertilization | sperm and egg meet inside the body |
| negative feedback loop | interaction of two hormones where one hormone stops the creation of another hormone |
| placenta | series of blood vessels where materials are EXCHANGED between mother and baby |
| progesterone | female hormone that provides negative feedback to LH and also promotes the thickening of the uterine lining. |
| sex cells | gametes such as sperm and egg |
| sexual reproduction | requires sperm and egg and results in a unique individual |
| sperm | male haploid gamete |
| testes | production of sperm and testosterone occurs here |
| testosterone | the male hormone that causes male sex characteristics |
| ultrasound | using sound waves, a visual image of a fetus is created to search for abnormalities in growth |
| umbilical cord | where materials travel from baby to placenta. |