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






2. 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






3. 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






4. Regulates secondary male sex characteristics including facial and pubic hair and voice changes






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






6. 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






7. Union of gametes






8. Female gonads that produce oocytes






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






10. AKA sperm production -occurs in the seminiferous tubules






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






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






13. Specialized organs where gametes are produced






14. Begins with the cessation of the menstrual flow from the previous cycle -FSH (Follicle Stimulating Hormone) from the anterior pituitary promotes the development of the follicle - which grows and begins secreting estrogen






15. Eggs






16. 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






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






18. Part of embry that are seed leaves






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






20. Mass of cells formed when the zygote divides






21. 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






22. Part of embryo that grows and feeds the embryo






23. Diploid cells of spermatogonia






24. 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






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






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






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






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






29. Muscular chamber which is the site of fetal development






30. Produced after meioisis from spermatids that undergo a series of changes -AKA mature sperm -specialized for transporting the sperm nucleus to the ovum -elongated cell with a head - neck - body - and tail






31. Produces monoploid spores that develop into pollen grains






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






33. Surrounded by two layers of cells






34. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes






35. 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






36. Secretes estrogen and progesterone






37. 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 -






38. Ex: estrogens and progesterone -synthesized by ovaries






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






40. Outer layer of oocyte cell membrane






41. 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






42. Have one cotyledon






43. 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






44. Split to form several bulbs






45. 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






46. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine






47. Have two cotyledons that absorb the endosperm






48. Common passageway for both the reproductive and exretory systems






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






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






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