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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. Union of gametes






2. 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






3. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere






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






5. Fibers of the spindle apparatus attach to each chromatid at the centromere to align the chromosomes at the center of the cell (equator)






6. AKA ovanan or fallopian tube -opens into the upper end of the uterus






7. Plants exhibit alternation of generation in which a diploid generation is succeeded by a haploid generation -diploid saprophyte generation produces haploid spores - which develop into the haploid saprophyte generation






8. Diploid cells that undergo meiosis to produce four haploid sperm of equal size






9. AKA sperm production -occurs in the seminiferous tubules






10. Inner layer of oocyte cell membrane






11. Four haploid cells produced from the second meiotic division after secondary spermatocytes






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






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






14. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are






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






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






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






18. Undifferentiated tissues in plants






19. Diploid cells of spermatogonia






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






21. Part of embry that are seed leaves






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






23. Produces monoploid spores that develop into pollen grains






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






25. 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






26. Cell division that follows karyokinesis






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






28. Hormonal secretions of the ovaries - the hypothalamus - and the anterior pituitary play important roles in the female reproductive cycle -divided into the follicular phase - ovulation - the luteal phase - and menstruation






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






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






31. Egg






32. Female gonads that produce oocytes






33. Reproductive structure of angiosperms






34. Occurs midway through the cycle -a mature ovarian follicle bursts and releases an ovum -caused by a surge in LH (Luteinizing Hormone) that is preceded - and in part caused - by a peak in estrogen levels






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






36. Uncoiled DNA






37. 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






38. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth






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






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






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






42. Meristems provide a source of cells that can develop into an adult plant -can occur naturally or through human intervention -advantagous because it introduces no genetic variation and is a rapid form of reproduction






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






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






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






46. 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






47. Produced when each meiotic division -rapidly degenerate






48. 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






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






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