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Test your basic knowledge |
PCAT Biology Reproduction
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Subjects
:
pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
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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. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Secondary Spermatocytes
Dizygotic (Fraternal) Twins
Tetrad
External Fertilization
2. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents
Cotyledons
Sexual Reproduction in Animals
Endosperm
Angiosperms
3. Passes through the penis and opens to the outside at its tip
Urethra
Cotyledons
Female Sex Hormones
Ovaries
4. 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
Telophase I
Metaphase Plate (Interphase)
Artificial Vegetative Propagation
Spore Formation
5. Muscular chamber which is the site of fetal development
Four Parts of Interphase
Cortical Reaction
Corona Radiata
Uterus
6. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore
Metaphase I
External Fertilization
Scrotum
Gametophyte Generation
7. 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
Spermatogenesis
Mitosis
Tubers
Fission
8. Produces two intermediate daughter cells with N chromosomes with sister chromatids
hCG (human Chorionic Gonadotrophin)
First Meiotic Division
Interphase (Meiosis)
Ovaries
9. Uncoiled DNA
Flower
Cellular Division (Multicellular Organisms)
Chromatin
Oocyte Cell Membrane
10. 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
Secondary Oocyte
Corona Radiata
Menstruation
Polar Body
11. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils
Follicular phase
Spermatogenesis
Sexual Reproduction in Angiosperms
Meisosis vs. Mitosis
12. 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
Chromatin
Meisosis vs. Mitosis
Sporophyte
Flower
13. Specialized cells with hard coverings that prevent loss of water
Spores
External Fertilization
Testes
Hermaphrodites
14. Split to form several bulbs
Telophase I
Fertilization membrane
Endosperm
Bulbs
15. 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 -
Menses
Chromatin
Secondary Spermatocytes
Asexual Reproduction
16. Eggs
Oocytes
Flagellum
Ovum
Metaphase (Interphase)
17. Bulbs - tubers - runners - rhizomes
Natural Vegatative Propagation
Sporophyte Generation
Disjunction
Single Mature Egg
18. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants
Secondary Oocyte
Interphase
Tubers
Vegetative Propagation
19. 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
Head of Sperm
Anaphase (Interphase)
Mature Ovum
Fission
20. (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
Female Sex Hormones
Asexual Reproduction
Crossing Over
Budding
21. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Spermatids
Follicular phase
Oocyte Cell Membrane
Metaphase I
22. Thin and stalk like with a terminal sac called the anther
Spermatids
Filament
Metaphase I
Angiosperms
23. Produces monoploid spores that develop into pollen grains
Natural Vegatative Propagation
Follicle
Anther
epicotyl
24. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm
Fertilization
Prophase I
Cortical Reaction
Internal Fertilization
25. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane
Cellular Division (Multicellular Organisms)
Cell Plate
Meristems
Menses
26. Produced when each meiotic division -rapidly degenerate
Polar Body
Sporophyte Generation
Ovaries
Prophase I
27. AKA lateral meristem -located between the xylem and phloem
Sexual Reproductive Mechanisms
Acrosomal Process
Follicular phase
Cambium
28. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Head of Sperm
Follicle
Corona Radiata
Hypocotyl
29. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems
Gametophyte Generation
Spermatogenesis
Runners
Cytokinesis (Interphase)
30. (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
Gametophyte Generation
Cell Division
Testosterone
Disjunction
31. 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
Budding
Flower
Mature sperm
Spermatozoa
32. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes
Polar Body
Mitosis
Metaphase I
Sexual Reproductive Mechanisms
33. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle
Fertilization
Karyokinesis
Regeneration
Sexual Reproduction Requires
34. Specialized sex cells
Gametes
Runners
Metaphase I
Ovulation
35. Secretes estrogen and progesterone
Corpus Luteum
Monozygotic (identical) Twins
Rhizomes
Telophase (Interphase)
36. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct
Disjunction
Meiosis
Immature ovum
Urethra
37. Daughter cells of unequal size produced from one primary oocyte per month completes meiosis I -expelled from the follicle during ovulation
oviduct
Fertilization/Conjugation
Second Meiotic Division
Secondary Oocyte
38. Have two cotyledons that absorb the endosperm
Asexual Reproduction
Angiosperms
Dicots
Crossing Over
39. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion
Flagellum
Menstruation
Vaginal Canal
Testes
40. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes
Sporophyte
Follicular phase
Meristem Cells
Scrotum
41. Result when a single zygote splits into two embryos
Ovum
Telophase I
Testes
Monozygotic (identical) Twins
42. Specialized organs where gametes are produced
Interphase (Meiosis)
Follicle
Gonads
Cell Plate
43. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction
Tetrad
Primary Oocytes
Centromere
Meristem Cells
44. Consists almost entirely of the nucleus - which contains the paternal genome
Immature ovum
Corona Radiata
Head of Sperm
Sporophyte Generation
45. Sperm production -occurs in the seminiferous tubules
Corona Radiata
Ovaries
Cellular Division (Multicellular Organisms)
Spermatogenesis
46. Outer layer of oocyte cell membrane
Corona Radiata
Cytokinesis (Interphase)
Monozygotic (identical) Twins
Secondary Oocyte
47. Inner layer of oocyte cell membrane
Endosperm
Embryo
Fertilization/Conjugation
Zona Pellucida
48. Regulates secondary male sex characteristics including facial and pubic hair and voice changes
Corona Radiata
Head of Sperm
Ovum
Testosterone
49. Part of embryo that develops from the outer covering of the ovule
Progesterone
Seed Coat
Stamen
Asexual Reproduction in Plants
50. Mass of cells formed when the zygote divides
Metaphase Plate (Interphase)
Metaphase (Interphase)
Male Urethra
Embryo
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