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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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.
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. Thin and stalk like with a terminal sac called the anther
Asexual Reproduction in Plants
Cell Plate
Luteal Phase
Filament
2. Sporophyte generation is the dominant - familiar form
Dicots
Bulbs
Oogenesis
Ferns
3. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants
Spermatids
Ovaries
Angiosperms
Tubers
4. 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
Cellular Division (Unicellular Organisms)
Acrosomal Process
Male Urethra
Immature ovum
5. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation
Sporophyte Generation
Head of Sperm
Oocytes
Gametophyte Generation
6. Specialized sex cells
Spermatogonia
Meristem Cells
Gametes
Anaphase I
7. Two haploid cells yielded from meiotic division of primary spermatocytes
Secondary Spermatocytes
Cytokinesis
Oocyte Cell Membrane
Cell Division
8. 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
Sexual Reproductive Mechanisms
Fertilization membrane
Mosses
Sexual Reproduction Requires
9. Bulbs - tubers - runners - rhizomes
Natural Vegatative Propagation
Gametes
Sexual Reproductive Mechanisms
Sporophyte Generation
10. Spore formation - vegetative propagation - and Artificial Vegetative Propagation
Menstruation
Monocots
Asexual Reproduction in Plants
Gametes
11. Consists almost entirely of the nucleus - which contains the paternal genome
Urethra
Head of Sperm
hCG (human Chorionic Gonadotrophin)
Female Sex Hormones
12. Regulates secondary male sex characteristics including facial and pubic hair and voice changes
Testosterone
Stamen
Anaphase I
Sexual Reproduction in Animals
13. Eggs
Flower
Oocytes
Follicle
Mature Ovum
14. 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
External Fertilization
Follicular phase
Mature sperm
Urethra
15. Contains elongated cell with head - tail - neck - and body
Disjunction
Cervix
Gametophyte Generation
Mature sperm
16. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Chromatin
Dicots
Scrotum
Spermatids
17. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries
epicotyl
Bulbs
First Meiotic Division
Single Mature Egg
18. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Artificial Vegetative Propagation
Spermatogenesis
Primary Oocytes
Follicle
19. Passes through the penis and opens to the outside at its tip
Urethra
Dizygotic (Fraternal) Twins
Seed Coat
Spermatids
20. Cell division that follows karyokinesis
Sexual Reproduction in Angiosperms
Cytokinesis
Internal Fertilization
Spermatozoa
21. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids
Sexual Reproduction Requires
Interphase (Meiosis)
Cell Division
Dizygotic (Fraternal) Twins
22. 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
Progesterone
Gametes
Sporophyte Generation
Fertilization membrane
23. Located on scrotum -site for testosterone
Spermatids
Ovum
Testes
Karyokinesis
24. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
Meiosis
Urethra
Anaphase (Interphase)
Menstruation
25. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth
Vaginal Canal
Internal Fertilization
Spermatids
Spermatozoa
26. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents
Sexual Reproduction in Animals
Spermatogonia
epicotyl
Ovaries
27. The development of an unfertilized egg into an adult organism
Partenogenesis
Sexual Reproductive Mechanisms
Mitosis
Testosterone
28. Part of embryo that develops into the lower and root
External Fertilization
Hypocotyl
Mosses
Meristems
29. Large cell containing most of the cytoplasm - RNA - organelles - and nutrients needed by a developing embryo
Meisosis vs. Mitosis
Sporophyte Generation
Mature Ovum
Anaphase I
30. Female gonads that produce oocytes
Corpus Luteum
Single Mature Egg
Runners
Ovaries
31. (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
Crossing Over
Ferns
Anther
Ovaries
32. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase
Meristem Cells
Zona Pellucida
Spermatogonia
Centromere
33. Found in the tips of roots and stems where growth in length occurs
Cellular Division (Multicellular Organisms)
Mosses
Apical Meristem
Hypocotyl
34. Menstrual flow
Menses
Dicots
Spores
Meristem Cells
35. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival
Scrotum
Centromere
Crossing Over
First Meiotic Division
36. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes
Asexual Reproduction
Acrosome
Runners
Sexual Reproductive Mechanisms
37. Reproductive structure of angiosperms
Fertilization/Conjugation
Dizygotic (Fraternal) Twins
Prophase I
Flower
38. Produced in developing placenta if fertilization occurs - maintaining the corpus luteum and - thus - the supply of estrogen and progesterone that maintains the uterus - until the placenta takes over production of these hormones
Internal Fertilization
Centromere
hCG (human Chorionic Gonadotrophin)
Scrotum
39. Method of growth - development - and replacement of worn-out cells
Oogenesis
Meisosis vs. Mitosis
Cellular Division (Multicellular Organisms)
Flower
40. (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
Spore Formation
Fertilization/Conjugation
Meristem Cells
41. Have two cotyledons that absorb the endosperm
Testes
Dicots
Vaginal Canal
Seed Coat
42. 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
Vegetative Propagation
Telophase (Interphase)
Cell Plate
Endosperm
43. 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 -
Menstruation
Asexual Reproduction
Cotyledons
Male Urethra
44. Undergoes disjunction
Asexual Reproduction
Scrotum
Anaphase I
Mature Ovum
45. Inner layer of oocyte cell membrane
Mature Ovum
Zona Pellucida
Acrosomal Process
Corona Radiata
46. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils
Metaphase I
Monozygotic (identical) Twins
Synapsis
Sexual Reproduction in Angiosperms
47. The male organ of the flower and consists of a thin - stalk-like filament
Zona Pellucida
Stamen
Meristem Cells
Telophase (Interphase)
48. 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
Fertilization
Metaphase I
Menstruation
Oogenesis
49. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually
Gametophyte Generation
Female Sex Hormones
Primary Spermatocytes
Vegetative Propagation
50. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles
Centromere
Ovaries
Menstrual Cycle
Zona Pellucida
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