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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. The production of female gametes - occurs in the ovaries






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






3. Part of embry that are seed leaves






4. Union of gametes






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






6. 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






7. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival






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






9. 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






10. Cell division that follows karyokinesis






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






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






13. Female gonads that produce oocytes






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






15. Diploid cells of spermatogonia






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






17. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore






18. 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






19. 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






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






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






22. AKA sperm production -occurs in the seminiferous tubules






23. Uncoiled DNA






24. 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






25. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs






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






27. Common passageway for both the reproductive and exretory systems






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






29. 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






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






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






32. A means of reproduction






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






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






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






36. 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






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






38. Menstrual flow






39. (In Anaphase I) homologous pairs separate and are pulled to opposite poles of the cell -accounts for a fundamental Mendelian Law -each chromosome of paternal origin separates (or disjoins) from its homologue of maternal origin - and either chromosome






40. Part of embryo that grows and feeds the embryo






41. Located on scrotum -site for testosterone






42. Undergoes disjunction






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






44. Egg






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






46. Cell undergoes a period of growth and replication of genetic material before the initiation of mitosis -cell spends at least 90% of life in interphase -each chromosome is replicated so that during division - a complete copy of the genome can be distr






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






48. Produces monoploid spores that develop into pollen grains






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






50. 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