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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. Secretes estrogen and progesterone






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






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






4. (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






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






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






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






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. Eggs






10. Mass of cells formed when the zygote divides






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






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






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






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






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






16. Surrounded by two layers of cells






17. 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






18. 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






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






20. 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






21. 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






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






23. Produces monoploid spores that develop into pollen grains






24. Have one cotyledon






25. 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 -






26. Sporophyte generation is the dominant - familiar form






27. (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






28. Egg






29. 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






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






31. Inner layer of oocyte cell membrane






32. Occurs in vertebrates that reproduce in water (fish and amphibians) -female lays eggs in water and male deposits sperm in the vicinity -lack of direct passage of sperm from male to female reduces chances of fertilization considerably






33. 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






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






35. 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






36. AKA ovanan or fallopian tube -opens into the upper end of the uterus






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






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






39. Bulbs - tubers - runners - rhizomes






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






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






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






43. Have two cotyledons that absorb the endosperm






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






45. Muscular chamber which is the site of fetal development






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






47. Produced when each meiotic division -rapidly degenerate






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






49. Regrowth of a lost or injured body part






50. 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







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