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PCAT Biology Reproduction

Subjects : pcat, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Produced when each meiotic division -rapidly degenerate






2. AKA sperm production -occurs in the seminiferous tubules






3. Contains elongated cell with head - tail - neck - and body






4. Specialized cells with hard coverings that prevent loss of water






5. A tubelike structure formed by the sperm once in contact with the membrane -extends to the cell membrane and penetrates it - fusing the sperm cell membrane with that of the ovum -Sperm nucleus now enters the ovum's cytoplasm to complete Meiosis II






6. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase






7. Outer layer of oocyte cell membrane






8. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents






9. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth






10. Mass of cells formed when the zygote divides






11. AKA lateral meristem -located between the xylem and phloem






12. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs






13. Part of embryo that is the precursor of the upper stem and leaves






14. Spore formation - vegetative propagation - and Artificial Vegetative Propagation






15. The spindle apparatus disappears. A nuclear membrane forms around each set of newly formed chromosomes. Thus - each nucleus contains the same number of chromosomes (the diploid number 2n) as the original or parent nucleus. The chromosomes uncoil - re






16. Eggs






17. Surrounded by two layers of cells






18. Specialized organs where gametes are produced






19. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles






20. The male organ of the flower and consists of a thin - stalk-like filament






21. (In Anaphase I) homologous pairs separate and are pulled to opposite poles of the cell -accounts for a fundamental Mendelian Law -each chromosome of paternal origin separates (or disjoins) from its homologue of maternal origin - and either chromosome






22. Causes the glands of the endometrium to mature and produce secretions that prepare it for the implantation of an embryo -essential for the maintenance of the endometrium






23. Cell undergoes a period of growth and replication of genetic material before the initiation of mitosis -cell spends at least 90% of life in interphase -each chromosome is replicated so that during division - a complete copy of the genome can be distr






24. Specialized sex cells






25. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids






26. Chromosomes condense - and the centriole pairs (in animals) separate and move towards the opposite poles of the cell. the spindle apparatus forms between them - and the nuclear membrane dissolves - allowing the spindle fibers to interact with the chr






27. 1) G1: Initiates interphase. is described as the active growth phase and can vary in length. the cell increases in size and synthesizes proteins. the length of the G1 phase determines the length of the entire cell cycle 2) S: the period of DNA synthe






28. Passes through the penis and opens to the outside at its tip






29. Pass from the testes through the vas deferens to the ejaculatory duct and then to the urethra






30. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction






31. Part of embry that are seed leaves






32. Diploid cells of spermatogonia






33. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two






34. Female gonads that produce oocytes






35. Formed due to cortical reaction -hard layer that surrounds the ovum cell membrane and prevents multiple fertilizations -Followed by the fusion of sperm nucleus and form a diploid zygote






36. Daughter cells of unequal size produced from one primary oocyte per month completes meiosis I -expelled from the follicle during ovulation






37. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids






38. The production of female gametes -occurs in the ovarian follicles






39. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation






40. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane






41. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually






42. Centriole pairs are now at opposite poles of the cell






43. Common passageway for both the reproductive and exretory systems






44. Male gonads - produce sperm in the tightly coiled seminiferous tubules






45. Produces two intermediate daughter cells with N chromosomes with sister chromatids






46. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes






47. Flowering plants consisting of a few cells that exist for a very short time






48. Steroid hormones necessary for normal female maturation -stimulate the development of the female reproductive tract and contribute to the development of secondary sexual characteristics and sex drive -responsible for the thickening of the endometrium






49. The production of female gametes - occurs in the ovaries






50. Method of growth - development - and replacement of worn-out cells