Test your basic knowledge |

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. 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






2. Undergoes disjunction






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






4. Menstrual flow






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






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






7. 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






8. Female gonads that produce oocytes






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






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






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






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






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






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






15. 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






16. 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






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






18. 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






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






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






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






22. 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






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






24. Nuclear division and followed by cell division






25. Muscular chamber which is the site of fetal development






26. 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






27. Caplike structure - derived from the Golgi apparatus - develops over the anterior half of the head -contains enzymes needed to penetrate the tough outer covering of the ovum






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






29. Cell division that follows karyokinesis






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






31. 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






32. After ovulation - LH induces the ruptured follicle to develop into the corpus luteum






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






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






35. Regrowth of a lost or injured body part






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






37. Part of embryo that develops into the lower and root






38. Surrounded by two layers of cells






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






40. Secretes estrogen and progesterone






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






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






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






44. Thin and stalk like with a terminal sac called the anther






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






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






47. Have both functional male and female gonads






48. Have one cotyledon






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






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