Biology Terms - MCAT Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Centromere | central region of a chromosome (or chromatid) |
Centrioles | cylindrical organelles within the centrosome |
Centrosome | area which serves as a base for spindle formation |
Chromatin | uncoiled DNA which appears granular |
Asters | structure of spindle fibers radiating from centrosome |
Kinetochores | connection point of spindle fiber to centromere on chromosome |
Binary fission | simple form of asexual reproduction in prokaryotes |
Budding | replication of nucleus with unequal cytokenesis; in yeast and hydra |
Regeneration | regrowth of a lost or injured body part; replacement by mitosis |
Parthenogenesis | development of unfertilized egg into an adult organism |
Gametocytes | specialized cells that undergo meiosis |
Homologous chromosomes | chromosomes that code for the same traits; 1 maternal and 1 paternal |
Synapsis | process of chromosome pair overlapping |
Tetrad | synaptic pair of homologous chromosomes; four chromatids |
Crossing over | homologous chromosomes exchange equivalent pieces of DNA |
Chiasmata | points where crossing over occurs |
Genetic recombination | result of crossing over; exchange of genetic data |
Disjunction | separation of homologous chromosomes by chance to daughter cells |
Alleles | a pool of unique genes coding for alternative forms of a given trait |
Cleavage | embryonic development through a series of rapid mitotic divisions |
Determinate cleavage | results in a cell whose future pathways are determined early |
Indeterminate cleavage | results in cells that maintain the ability to develop into a complete organism |
Morula | earliest solid ball of embryonic cells in the uterus |
Blastula | hollow sphere of cells |
Blastulation | process of the morula developing a fluid-filled cavity called, a blastocoel |
Blastocoel | fluid-filled cavity in the developing morula |
Blastocyst | the mammalian blastula |
Trophoblast | cell layer that surrounds the blastocoel and and gives rise to the chorion |
Endometrium | mucosal lining of the uterus; prepared by progesterone; location of implantation |
Gastrula | three-layered structure: ectoderm, endoderm, and archenteron |
Archenteron | newly formed cavity of the two-layered gastrula; develops into the gut |
Blastopore | opening of the archenteron |
Deuterostomes | organisms for which blastopore develops into the anus |
Protostomes | organisms for which blastopore develops into the mouth |
Induction | the differentiation of a group of cells by another group (the organizers) |
Inducers | chemical substances passed by organizers during induction |
Notochord | rod of mesodermal cells; induces the formation of the neural groove/tube |
Fetus | the growing embryo (beyond 8 weeks gestation) |
Placenta | |
Umbilical chord | connection between fetus and placenta; develops from the allantois and yolk sac |
Amnion | thin, tough membrane containing amniotic fluid which acts as a shock absorber |
Chorion | a membrane that completely surrounds the amnion and extends chorionic villi |
Fetal Hemoglobin | Hb-F; greater affiliation for oxygen than maternal hemoglobin |
Umbilical vein | carries oxygenated blood from the placenta to the fetus |
Ductus venosus | a shunt that diverts the fetal blood to bypass the liver |
Foramen ovale | a shunt that delivers blood from the RA to the LA bypassing the pulmonary circuit |
Ductus arteriosus | a shunt connecting the pulmonary artery to the aorta |
Centromere | central region of a chromosome (or chromatid) |
Centrioles | cylindrical organelles within the centrosome |
Centrosome | area which serves as a base for spindle formation |
Chromatin | uncoiled DNA which appears granular |
Asters | structure of spindle fibers radiating from centrosome |
Kinetochores | connection point of spindle fiber to centromere on chromosome |
Binary fission | simple form of asexual reproduction in prokaryotes |
Budding | replication of nucleus with unequal cytokenesis; in yeast and hydra |
Regeneration | regrowth of a lost or injured body part; replacement by mitosis |
Parthenogenesis | development of unfertilized egg into an adult organism |
Gametocytes | specialized cells that undergo meiosis |
Homologous chromosomes | chromosomes that code for the same traits; 1 maternal and 1 paternal |
Synapsis | process of chromosome pair overlapping |
Tetrad | synaptic pair of homologous chromosomes; four chromatids |
Crossing over | homologous chromosomes exchange equivalent pieces of DNA |
Chiasmata | points where crossing over occurs |
Genetic recombination | result of crossing over; exchange of genetic data |
Disjunction | separation of homologous chromosomes by chance to daughter cells |
Alleles | a pool of unique genes coding for alternative forms of a given trait |
Cleavage | embryonic development through a series of rapid mitotic divisions |
Determinate cleavage | results in a cell whose future pathways are determined early |
Indeterminate cleavage | results in cells that maintain the ability to develop into a complete organism |
Morula | earliest solid ball of embryonic cells in the uterus |
Blastula | hollow sphere of cells |
Blastulation | process of the morula developing a fluid-filled cavity called, a blastocoel |
Blastocoel | fluid-filled cavity in the developing morula |
Blastocyst | the mammalian blastula |
Trophoblast | cell layer that surrounds the blastocoel and and gives rise to the chorion |
Endometrium | mucosal lining of the uterus; prepared by progesterone; location of implantation |
Gastrula | three-layered structure: ectoderm, endoderm, and archenteron |
Archenteron | newly formed cavity of the two-layered gastrula; develops into the gut |
Blastopore | opening of the archenteron |
Deuterostomes | organisms for which blastopore develops into the anus |
Protostomes | organisms for which blastopore develops into the mouth |
Induction | the differentiation of a group of cells by another group (the organizers) |
Inducers | chemical substances passed by organizers during induction |
Notochord | rod of mesodermal cells; induces the formation of the neural groove/tube |
Fetus | the growing embryo (beyond 8 weeks gestation) |
Placenta | |
Umbilical chord | connection between fetus and placenta; develops from the allantois and yolk sac |
Amnion | thin, tough membrane containing amniotic fluid which acts as a shock absorber |
Chorion | a membrane that completely surrounds the amnion and extends chorionic villi |
Fetal Hemoglobin | Hb-F; greater affiliation for oxygen than maternal hemoglobin |
Umbilical vein | carries oxygenated blood from the placenta to the fetus |
Ductus venosus | a shunt that diverts the fetal blood to bypass the liver |
Foramen ovale | a shunt that delivers blood from the RA to the LA bypassing the pulmonary circuit |
Ductus arteriosus | a shunt connecting the pulmonary artery to the aorta |
Created by:
stringstrummer22
Popular MCAT sets