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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. 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






2. Common passageway for both the reproductive and exretory systems






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






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






5. Located on scrotum -site for testosterone






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






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






8. 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 -






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






10. AKA sperm production -occurs in the seminiferous tubules






11. 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






12. Uncoiled DNA






13. Produces monoploid spores that develop into pollen grains






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






15. Menstrual flow






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. Found in the tips of roots and stems where growth in length occurs






18. 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






19. Ex: estrogens and progesterone -synthesized by ovaries






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






21. 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






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






23. 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






24. 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






25. Specialized sex cells






26. 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






27. Specialized organs where gametes are produced






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






29. 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






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






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






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






33. Regrowth of a lost or injured body part






34. (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






35. A means of reproduction






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






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






38. Bulbs - tubers - runners - rhizomes






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






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






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






42. Have two cotyledons that absorb the endosperm






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






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. AKA lateral meristem -located between the xylem and phloem






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






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






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






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