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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. 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






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






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






5. Have both functional male and female gonads






6. Ex: estrogens and progesterone -synthesized by ovaries






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






8. Reproductive structure of angiosperms






9. (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






10. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are






11. Uncoiled DNA






12. (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






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






14. Plant cells lack centrioles -spindle apparatus is synthesized by mcrotubule organizing centers that are not visible -cytokinesis in animal cells proceeds through production of a cleavage furrow -Plant cells are rigid and can't form cleavage furrows -






15. Female gonads that produce oocytes






16. Split to form several bulbs






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






18. Common passageway for both the reproductive and exretory systems






19. Located on scrotum -site for testosterone






20. Have two cotyledons that absorb the endosperm






21. Replication of the nucleus followed by unequal cytokinesis -membrane pinches inward to forma new cell that is smaller in size but genetically identical to the parent cell






22. 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






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






24. Lower - narrow end of the uterus -connects with the vaginal canal






25. 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






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






27. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles






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






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






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






31. Part of embryo that grows and feeds the embryo






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






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






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






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






36. Eggs






37. Mass of cells formed when the zygote divides






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






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






40. Menstrual flow






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






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






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






44. Undergoes disjunction






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






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






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






48. Outer layer of oocyte cell membrane






49. 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






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