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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. A tubelike structure formed by the sperm once in contact with the membrane -extends to the cell membrane and penetrates it - fusing the sperm cell membrane with that of the ovum -Sperm nucleus now enters the ovum's cytoplasm to complete Meiosis II
Regeneration
Cambium
Acrosomal Process
Spore Formation
2. Bulbs - tubers - runners - rhizomes
Rhizomes
Natural Vegatative Propagation
Regeneration
Stamen
3. 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
Hypocotyl
Progesterone
Dicots
Crossing Over
4. Produces monoploid spores that develop into pollen grains
Mitosis
Anther
Asexual Reproduction in Plants
Oocyte Cell Membrane
5. Produced when each meiotic division -rapidly degenerate
Polar Body
Menses
Meristems
Prophase I
6. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth
Cytokinesis
Fission
Immature ovum
Primary Oocytes
7. (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
Spermatogenesis
Second Meiotic Division
Crossing Over
Cytokinesis (Interphase)
8. Consists almost entirely of the nucleus - which contains the paternal genome
Mitosis
External Fertilization
Head of Sperm
Oogenesis
9. 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
Fission
Interphase
Secondary Oocyte
Hypocotyl
10. Undergoes disjunction
Endosperm
Anaphase I
Corona Radiata
Secondary Spermatocytes
11. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine
Follicle
Meristem Cells
Synapsis
Ferns
12. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents
Ferns
Meristems
Sexual Reproduction in Animals
Spermatogonia
13. Menstrual flow
Progesterone
Corona Radiata
Menses
Oocyte Cell Membrane
14. 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
Plant vs. Animal cells
Meisosis vs. Mitosis
Mosses
Corona Radiata
15. Lower - narrow end of the uterus -connects with the vaginal canal
Corona Radiata
Cervix
Secondary Spermatocytes
Immature ovum
16. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion
Anther
Corona Radiata
Monozygotic (identical) Twins
Flagellum
17. 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
Ovulation
Prophase I
External Fertilization
Natural Vegatative Propagation
18. Result when a single zygote splits into two embryos
Monozygotic (identical) Twins
Cell Plate
Cortical Reaction
Metaphase (Interphase)
19. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Prophase I
Cell Division
Follicular phase
Interphase (Meiosis)
20. Diploid cells that undergo meiosis to produce four haploid sperm of equal size
Cellular Division (Unicellular Organisms)
Spermatogonia
Meiosis
Flagellum
21. Sporophyte generation is the dominant - familiar form
Gonads
Synapsis
Ferns
Meisosis vs. Mitosis
22. 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
Interphase
Oogenesis
External Fertilization
Centromere
23. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival
Sexual Reproduction in Animals
Oogenesis
Scrotum
Telophase I
24. 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
Menses
Fertilization
Metaphase (Interphase)
Metaphase I
25. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids
Zona Pellucida
Interphase (Meiosis)
Primary Spermatocytes
Monozygotic (identical) Twins
26. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Partenogenesis
Mitosis
Zona Pellucida
Testes
27. Large cell containing most of the cytoplasm - RNA - organelles - and nutrients needed by a developing embryo
Anaphase (Interphase)
Secondary Spermatocytes
Meristems
Mature Ovum
28. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Dizygotic (Fraternal) Twins
Gametophyte Generation
hCG (human Chorionic Gonadotrophin)
Single Mature Egg
29. Female gonads that produce oocytes
Gametophyte Generation
Stamen
Ovaries
Spermatozoa
30. Split to form several bulbs
Sexual Reproduction Requires
Bulbs
Budding
Menstruation
31. Outer layer of oocyte cell membrane
Crossing Over
Sexual Reproduction in Animals
Corona Radiata
Flower
32. Ex: estrogens and progesterone -synthesized by ovaries
Luteal Phase
Female Sex Hormones
Meiosis
Monocots
33. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles
hCG (human Chorionic Gonadotrophin)
Ovaries
Asexual Reproduction
Dizygotic (Fraternal) Twins
34. 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
Secondary Oocyte
Synapsis
Sexual Reproduction in Angiosperms
Acrosome
35. AKA lateral meristem -located between the xylem and phloem
Cell Plate
Cambium
Spermatids
Corpus Luteum
36. Occurs midway through the cycle -a mature ovarian follicle bursts and releases an ovum -caused by a surge in LH (Luteinizing Hormone) that is preceded - and in part caused - by a peak in estrogen levels
Cotyledons
Ovaries
Stamen
Ovulation
37. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes
Sexual Reproduction in Animals
Sporophyte
Prophase I
Flagellum
38. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses
Endosperm
Fission
External Fertilization
Menstruation
39. Surrounded by two layers of cells
Oocyte Cell Membrane
Tubers
Spores
Meristem Cells
40. AKA ovanan or fallopian tube -opens into the upper end of the uterus
Testes
oviduct
Follicular phase
Luteal Phase
41. 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
Fertilization
Fertilization/Conjugation
Cytokinesis (Interphase)
Uterus
42. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Disjunction
epicotyl
Prophase (Interphase)
Spermatids
43. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct
Progesterone
Bulbs
Follicular phase
Immature ovum
44. Secretes estrogen and progesterone
Mature sperm
Telophase (Interphase)
Mature Ovum
Corpus Luteum
45. 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
Cambium
Uterus
Sperm Travels...
Spermatozoa
46. Found in the tips of roots and stems where growth in length occurs
Luteal Phase
Oocytes
Vaginal Canal
Apical Meristem
47. (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
Spermatozoa
Sexual Reproduction Requires
Disjunction
Testosterone
48. Hormonal secretions of the ovaries - the hypothalamus - and the anterior pituitary play important roles in the female reproductive cycle -divided into the follicular phase - ovulation - the luteal phase - and menstruation
Oocyte Cell Membrane
Meristems
Disjunction
Menstrual Cycle
49. Mass of cells formed when the zygote divides
Filament
Meristems
Secondary Oocyte
Embryo
50. Centriole pairs are now at opposite poles of the cell
Metaphase (Interphase)
Vaginal Canal
Gametophyte Generation
Sporophyte
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