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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. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear






2. Surrounded by two layers of cells






3. Sperm production -occurs in the seminiferous tubules






4. 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






5. Outer layer of oocyte cell membrane






6. Can be fertilized during the 12-24hr after ovulation -occurs in the lateral - widest portion of the fallopian tube -sperm must travel through the vaginal canal - cervix - uterus - and into the fallopian tubes to reach the ovum






7. Part of embryo that develops from the outer covering of the ovule






8. Replication of the nucleus followed by unequal cytokinesis -membrane pinches inward to forma new cell that is smaller in size but genetically identical to the parent cell






9. Simple form of asexual reproduction seen in prokaryotic organisms -DNA replicates and a new plasma membrane and cell wall grow inward along the midline of the cell - dividing it into two equally size cells with equal maounts of cytoplasm - each conta






10. Production of offspring without fertilization -form new organisms by a single parent cell -offspring are genetic carbon copies of their parent cells -genetically identical to the parent cells (except mutations) -ex: fission - budding - regeneration -






11. Union of gametes






12. Bulbs - tubers - runners - rhizomes






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






14. Regrowth of a lost or injured body part






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






16. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle






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






18. Have one cotyledon






19. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct






20. 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






21. Diploid cells of spermatogonia






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






23. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm






24. Produces monoploid spores that develop into pollen grains






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






26. Lower - narrow end of the uterus -connects with the vaginal canal






27. Specialized sex cells






28. Near the end of telophase - the cytoplasm divides into two daughter cells - each wit a complete nucleus and its own set of organelles -In animal cells - a cleavage furrow forms - and the cell membrane indents along the equator of the cell and finally






29. Cut piece of stem can develop new roots in water or moist gorund - which can be used to accelerate root formation -layering: stems of certain plants - will take root when bent to the gorund and covered with soil -stem of one plant (scion) can be atta






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






31. The development of an unfertilized egg into an adult organism






32. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes






33. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants






34. Inner layer of oocyte cell membrane






35. Similar to mitosis in that a cell duplicates its chromosomes before undergoing the process -whereas mitosis preserves the diploid number of the cell - meiosis produces the haploid (1N) number - having the number of chromosomes






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






37. Menstrual flow






38. Large cell containing most of the cytoplasm - RNA - organelles - and nutrients needed by a developing embryo






39. Consists almost entirely of the nucleus - which contains the paternal genome






40. Occurs in vertebrates that reproduce in water (fish and amphibians) -female lays eggs in water and male deposits sperm in the vicinity -lack of direct passage of sperm from male to female reduces chances of fertilization considerably






41. Division and distribution of the cell's DNA to its two daughter cells such that each cell receives a complete copy of the original genome






42. 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






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






44. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen






45. AKA stolon -woody - underground stems -can develop new upright stems






46. AKA sperm production -occurs in the seminiferous tubules






47. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes






48. Uncoiled DNA






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






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