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






2. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion






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






4. Nuclear division and followed by cell division






5. Outer layer of oocyte cell membrane






6. 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






7. Flowering plants consisting of a few cells that exist for a very short time






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






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






10. 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






11. 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






12. 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






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






14. 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






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






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






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






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






19. Undifferentiated tissues in plants






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






21. (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






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






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






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






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






26. Sperm production -occurs in the seminiferous tubules






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






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






29. A means of reproduction






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






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






32. Cell division that follows karyokinesis






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






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






35. 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






36. Result when a single zygote splits into two embryos






37. 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






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






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






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






41. Menstrual flow






42. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses






43. Common passageway for both the reproductive and exretory systems






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






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






46. (In Prophase I) chromatids of homologous chromosomes break at corresponding points and exchange equivalent pieces of DNA -occurs between homologous chromosomes and not between sister chromatids of the same chromosomes (the latter are identical - so c






47. Have one cotyledon






48. Sporophyte generation is the dominant - familiar form






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






50. Specialized organs where gametes are produced