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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. Inner layer of oocyte cell membrane






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






3. Union of gametes






4. 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






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






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






7. 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






8. Female gonads that produce oocytes






9. 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






10. Produces monoploid spores that develop into pollen grains






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






12. 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






13. Menstrual flow






14. 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 -






15. Centriole pairs are now at opposite poles of the cell






16. 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






17. Reproductive structure of angiosperms






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






19. A means of reproduction






20. Secretes estrogen and progesterone






21. AKA sperm production -occurs in the seminiferous tubules






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






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






24. Thin and stalk like with a terminal sac called the anther






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






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






27. 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






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






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






30. Egg






31. Part of embryo that is the precursor of the upper stem and leaves






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






33. 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






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






35. 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






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






37. Outer layer of oocyte cell membrane






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






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






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






41. 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






42. Produced after meioisis from spermatids that undergo a series of changes -AKA mature sperm -specialized for transporting the sperm nucleus to the ovum -elongated cell with a head - neck - body - and tail






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






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






45. 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






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






47. Eggs






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






49. Uncoiled DNA






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







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