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






2. Have two cotyledons that absorb the endosperm






3. Outer layer of oocyte cell membrane






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






5. Part of embry that are seed leaves






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






7. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils






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. Surrounded by two layers of cells






10. 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






11. 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






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






13. Egg






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






15. 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






16. Similar to mitosis in that a cell duplicates its chromosomes before undergoing the process -whereas mitosis preserves the diploid number of the cell - meiosis produces the haploid (1N) number - having the number of chromosomes






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






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






19. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct






20. Menstrual flow






21. Nuclear division and followed by cell division






22. (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






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






24. Uncoiled DNA






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






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






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






28. 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






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






30. 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






31. First barrier that the sperm must penetrate -enzymes secreted by the sperm aid in penetration of the corona radiata -arosome is responsible for penetrating the zona pellucida; it releases enzymes that digest this layer - thereby allowing the sperm to






32. Produces monoploid spores that develop into pollen grains






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






34. Sporophyte generation is the dominant - familiar form






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






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






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






38. Diploid cells of spermatogonia






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






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






41. The development of an unfertilized egg into an adult organism






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






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






44. 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






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






46. Bulbs - tubers - runners - rhizomes






47. Regrowth of a lost or injured body part






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






49. 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






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







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