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Test your basic knowledge |
PCAT Biology Reproduction
Start Test
Study First
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) 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
Oocyte Cell Membrane
Crossing Over
Stamen
hCG (human Chorionic Gonadotrophin)
2. Specialized cells with hard coverings that prevent loss of water
Plant vs. Animal cells
Vaginal Canal
Spores
Ovulation
3. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents
Sexual Reproduction in Animals
Vaginal Canal
Mitosis
Artificial Vegetative Propagation
4. Spore formation - vegetative propagation - and Artificial Vegetative Propagation
Asexual Reproduction in Plants
Scrotum
Head of Sperm
Mitosis
5. 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
Meristems
Sperm Travels...
Testes
Telophase (Interphase)
6. After ovulation - LH induces the ruptured follicle to develop into the corpus luteum
Testes
Ovaries
Oocyte Cell Membrane
Luteal Phase
7. Result when a single zygote splits into two embryos
Sporophyte Generation
epicotyl
hCG (human Chorionic Gonadotrophin)
Monozygotic (identical) Twins
8. Eggs
Embryo
Acrosome
Oocytes
Metaphase (Interphase)
9. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Follicle
Anther
Testosterone
Flower
10. Found in the tips of roots and stems where growth in length occurs
Synapsis
Sperm Travels...
Plant vs. Animal cells
Apical Meristem
11. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Sporophyte
Dizygotic (Fraternal) Twins
Second Meiotic Division
Seed Coat
12. Part of embryo that grows and feeds the embryo
Telophase (Interphase)
Mosses
Endosperm
Cytokinesis
13. 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 -
Ferns
Mosses
Plant vs. Animal cells
Hypocotyl
14. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction
Anther
Meisosis vs. Mitosis
Telophase I
Meristem Cells
15. The male organ of the flower and consists of a thin - stalk-like filament
Spores
Sexual Reproduction in Animals
Stamen
Sexual Reproduction Requires
16. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes
Ovulation
Single Mature Egg
Mosses
Anaphase (Interphase)
17. AKA lateral meristem -located between the xylem and phloem
Acrosomal Process
Meristem Cells
Cambium
Gonads
18. 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
Ovaries
Budding
Anaphase (Interphase)
Ovulation
19. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils
Cell Division
Gonads
Ferns
Sexual Reproduction in Angiosperms
20. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere
Cellular Division (Multicellular Organisms)
Ovaries
Telophase I
Dizygotic (Fraternal) Twins
21. 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
Secondary Oocyte
Artificial Vegetative Propagation
Fertilization/Conjugation
Mature sperm
22. 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
Mosses
Plant vs. Animal cells
External Fertilization
Disjunction
23. Produces two intermediate daughter cells with N chromosomes with sister chromatids
First Meiotic Division
Spore Formation
Sperm Travels...
Zona Pellucida
24. Mass of cells formed when the zygote divides
Embryo
Artificial Vegetative Propagation
Runners
Cervix
25. Contains elongated cell with head - tail - neck - and body
Vaginal Canal
Testes
Mature sperm
Hypocotyl
26. Common passageway for both the reproductive and exretory systems
Immature ovum
Spermatogenesis
Male Urethra
Urethra
27. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Chromatin
Prophase I
Luteal Phase
Dicots
28. Undergoes disjunction
Ovulation
Second Meiotic Division
Meristem Cells
Anaphase I
29. Part of embry that are seed leaves
Menstrual Cycle
Rhizomes
Cotyledons
Mitosis
30. Flowering plants consisting of a few cells that exist for a very short time
Angiosperms
Bulbs
Dicots
Meristem Cells
31. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth
Interphase (Meiosis)
Secondary Spermatocytes
Ferns
Vaginal Canal
32. Two haploid cells yielded from meiotic division of primary spermatocytes
Zona Pellucida
Secondary Spermatocytes
Tubers
Centromere
33. 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 -
Cervix
Runners
epicotyl
Asexual Reproduction
34. A means of reproduction
Cellular Division (Unicellular Organisms)
Meristem Cells
Natural Vegatative Propagation
Immature ovum
35. AKA ovanan or fallopian tube -opens into the upper end of the uterus
Regeneration
Asexual Reproduction
oviduct
Mature Ovum
36. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore
Primary Oocytes
Urethra
Filament
Metaphase I
37. Passes through the penis and opens to the outside at its tip
Cortical Reaction
hCG (human Chorionic Gonadotrophin)
Urethra
Zona Pellucida
38. Regulates secondary male sex characteristics including facial and pubic hair and voice changes
Meristem Cells
Testosterone
Centromere
Anaphase I
39. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually
Spermatozoa
Mosses
Gametophyte Generation
Embryo
40. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes
Mature Ovum
Sexual Reproduction in Animals
Estrogens
Fertilization
41. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles
Sperm Travels...
Natural Vegatative Propagation
Testes
Ovaries
42. Have two cotyledons that absorb the endosperm
Dicots
Rhizomes
Testes
Monozygotic (identical) Twins
43. AKA stolon -woody - underground stems -can develop new upright stems
Menstrual Cycle
Rhizomes
Cellular Division (Unicellular Organisms)
Embryo
44. Part of embryo that develops into the lower and root
Endosperm
Hypocotyl
Male Urethra
Testes
45. Cell division that follows karyokinesis
Sporophyte Generation
Rhizomes
Cambium
Cytokinesis
46. (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
Disjunction
Cytokinesis
Gametes
Spores
47. Egg
Vaginal Canal
Corona Radiata
Male Urethra
Ovum
48. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants
Anther
Oogenesis
Interphase
Tubers
49. Sporophyte generation is the dominant - familiar form
Ferns
Cambium
Dicots
Corona Radiata
50. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Fertilization
Chromatin
Testes
Cytokinesis (Interphase)