Sexual Reproduction Flashcards
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341223574 | Mitosis | 1 diploid parent cell produces 2 diploid daughter cells | |
341223575 | Meiosis | 1 diploid parent cell produces 4 haploid daughter cells provides variation of gametes | |
341223576 | Mitosis in Humans | used for growth and wound repair | |
341223577 | Oogenesis | development of egg | |
341223578 | Eggs | non-motile haploid large cells produces 4 haploid cells | |
341223579 | Spermatogenesis | development of sperm | |
341223580 | Sperm | motile haploid small | |
341223581 | Asexual | Very quick and simple | |
341223582 | Sexual | Provides genetic variation within the species | |
341223583 | Comparison | Gametes are haploid Body cells are diploid Zygotes are diploid | |
341223584 | Human Reproduction | Regulated by genes and chemicals | |
341223585 | Fertilization | sperm plus egg | |
341223586 | Cleavage | Rapid mitotic divisions | |
341223587 | Different genes are used in different cells... | A person can have the same DNA in every cell in their body and have many types of cells produced | |
341223588 | Sequence of Development | Fertilization- cleavage- differentiation- growth | |
341223589 | Vas deferens | Transfer gametes (sperm) to urethra | |
341223590 | Testes | Produce sperm and testosterone | |
341223591 | Testosterone | Regulates male sexual reproductive cycle | |
341223592 | Pathway of Sperm | Testes- epididymis- vas deferens- urethra | |
341223593 | Pathway of S. into W. | Vagina- cervix- uterus- oviduct | |
341223594 | Oviduct | Transports gametes and best site of fertilization | |
341223595 | Ovary | Produces and releases egg | |
341223596 | Uterus | Embryo implantation and fetel development. Provides nutrition to developing fetus b/c it produces blood vessels which develop in the placenta | |
341223597 | Hormones | Regulate menstrual cycle | |
341223598 | FSH | Secreted by the pituitary gland stimulates follicle growth | |
341223599 | LH | Secreted by the pituitary gland triggers the follicle to rupture and mature ovum to be released (ovulation) | |
341223600 | Estrogen | Ovarian hormone targets the uterus signaling growth of lining | |
341223601 | Progesterone | Ovarian hormone secreted by corpus luteum targets the uterus signaling shedding of the lining | |
341223602 | Menstruation | Triggered by drop in progesterone, shedding of the uterine lining | |
341223603 | Embryonic Development | Fertilization- zygote- cleavage (mitosis)- differentiation- mitosis | |
341223604 | Zygote implants | in the uterine wall | |
341223605 | Placenta (from mother to fetus) | Provides nutrition and o2 for the embryo | |
341223606 | Placenta (from fetus to mother) | Wastes are removed from the developing fetus | |
341223607 | Factors that affect the fetus | Alcohol, drugs, smoking, diet | |
341223608 | Marsupials | Give birth to underdeveloped young, offspring mature by feeding on mother's milk in her pouch | |
341223609 | External Fertilization | Usually aquatic organisms; produce large number of eggs to make up for low survival rate | |
341223610 | Angiosperms | Flower is the reproductive part | |
341223611 | Pistil | Female part obtains the sticky stigma where pollen lands | |
341223612 | Stamen | Male part contains the anther where pollen is produced | |
341223613 | Pollination | Pollinator deposits pollen on stigma (pollen contains sperm) | |
341223614 | Morula | Solid ball of cells | |
341223615 | Blastrula | Hollow ball of cells | |
341223616 | Gastrula | Cells are positioned in layers |