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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. 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






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






3. Produced when each meiotic division -rapidly degenerate






4. Nuclear division and followed by cell division






5. 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 -






6. Female gonads that produce oocytes






7. 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






8. Muscular chamber which is the site of fetal development






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






10. Mass of cells formed when the zygote divides






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






12. Produced in developing placenta if fertilization occurs - maintaining the corpus luteum and - thus - the supply of estrogen and progesterone that maintains the uterus - until the placenta takes over production of these hormones






13. A means of reproduction






14. Found in the tips of roots and stems where growth in length occurs






15. 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






16. 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






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






18. Cell division that follows karyokinesis






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






20. 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






21. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm






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






23. Have two cotyledons that absorb the endosperm






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






25. AKA sperm production -occurs in the seminiferous tubules






26. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number






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






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






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






30. Regrowth of a lost or injured body part






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






32. Egg






33. Menstrual flow






34. Sperm production -occurs in the seminiferous tubules






35. Reproductive structure of angiosperms






36. Two haploid cells yielded from meiotic division of primary spermatocytes






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






38. Uncoiled DNA






39. 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






40. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries






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






42. 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






43. 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






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






45. Diploid cells of spermatogonia






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






47. Bulbs - tubers - runners - rhizomes






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






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






50. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems