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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. Located on scrotum -site for testosterone
Meristem Cells
Primary Oocytes
Testes
Metaphase Plate (Interphase)
2. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries
Primary Spermatocytes
Meisosis vs. Mitosis
Single Mature Egg
Tubers
3. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
Primary Oocytes
Primary Spermatocytes
Metaphase I
Meiosis
4. (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
Secondary Oocyte
Estrogens
epicotyl
Crossing Over
5. Undergoes disjunction
Interphase (Meiosis)
Gametes
Anaphase I
Centromere
6. 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
Acrosomal Process
Vaginal Canal
Metaphase (Interphase)
Mature sperm
7. 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
Oogenesis
Four Parts of Interphase
Interphase (Meiosis)
Stamen
8. Cell division that follows karyokinesis
Telophase (Interphase)
Cytokinesis
Mosses
Testes
9. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two
Cell Division
Crossing Over
Scrotum
Spermatogenesis
10. Menstrual flow
Acrosomal Process
Head of Sperm
Menses
Testes
11. The production of female gametes - occurs in the ovaries
Anaphase I
Oogenesis
Sporophyte
Monozygotic (identical) Twins
12. Found in the tips of roots and stems where growth in length occurs
Cellular Division (Multicellular Organisms)
Asexual Reproduction in Plants
Synapsis
Apical Meristem
13. Fibers of the spindle apparatus attach to each chromatid at the centromere to align the chromosomes at the center of the cell (equator)
Centromere
Internal Fertilization
oviduct
Metaphase Plate (Interphase)
14. Method of growth - development - and replacement of worn-out cells
Sporophyte
Stamen
Cellular Division (Multicellular Organisms)
Natural Vegatative Propagation
15. Consists almost entirely of the nucleus - which contains the paternal genome
Primary Spermatocytes
Oogenesis
Anther
Head of Sperm
16. 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 -
Runners
Asexual Reproduction
Seed Coat
Gonads
17. Diploid cells of spermatogonia
Primary Spermatocytes
Telophase (Interphase)
Endosperm
Dizygotic (Fraternal) Twins
18. Inner layer of oocyte cell membrane
Zona Pellucida
Spermatozoa
Budding
Seed Coat
19. Part of embryo that grows and feeds the embryo
Endosperm
Ovum
Gametophyte Generation
External Fertilization
20. Specialized organs where gametes are produced
Interphase (Meiosis)
Gonads
epicotyl
Luteal Phase
21. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs
Corpus Luteum
Spores
Follicular phase
Internal Fertilization
22. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct
Immature ovum
Monocots
Ovaries
Filament
23. Part of embryo that is the precursor of the upper stem and leaves
Acrosome
Sexual Reproduction in Animals
Corona Radiata
epicotyl
24. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Follicle
Cytokinesis
Dizygotic (Fraternal) Twins
Natural Vegatative Propagation
25. AKA ovanan or fallopian tube -opens into the upper end of the uterus
Cellular Division (Multicellular Organisms)
Uterus
Seed Coat
oviduct
26. Regulates secondary male sex characteristics including facial and pubic hair and voice changes
Corpus Luteum
Embryo
Testosterone
Female Sex Hormones
27. 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
Metaphase I
Meisosis vs. Mitosis
Vegetative Propagation
Cortical Reaction
28. Pass from the testes through the vas deferens to the ejaculatory duct and then to the urethra
Testes
Runners
Sperm Travels...
Cell Plate
29. Diploid cells that undergo meiosis to produce four haploid sperm of equal size
Sexual Reproductive Mechanisms
Sexual Reproduction in Animals
Spermatogonia
Interphase
30. Sporophyte generation is the dominant - familiar form
Asexual Reproduction in Plants
Single Mature Egg
Flower
Ferns
31. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number
Angiosperms
Polar Body
Second Meiotic Division
Asexual Reproduction
32. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore
Metaphase I
Menstruation
Tetrad
Crossing Over
33. Nuclear division and followed by cell division
Karyokinesis
Spermatids
Embryo
Ferns
34. Spore formation - vegetative propagation - and Artificial Vegetative Propagation
Flower
Monozygotic (identical) Twins
Regeneration
Asexual Reproduction in Plants
35. 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
Anther
Progesterone
Primary Spermatocytes
Immature ovum
36. A means of reproduction
Embryo
Sexual Reproduction in Angiosperms
Spermatogonia
Cellular Division (Unicellular Organisms)
37. The male organ of the flower and consists of a thin - stalk-like filament
Flower
Stamen
Interphase
Sexual Reproduction Requires
38. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes
Mitosis
epicotyl
Prophase (Interphase)
Sexual Reproductive Mechanisms
39. 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
Apical Meristem
Flower
Spore Formation
Primary Spermatocytes
40. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids
Female Sex Hormones
Cytokinesis
Tetrad
Interphase (Meiosis)
41. Regrowth of a lost or injured body part
Uterus
Head of Sperm
Regeneration
External Fertilization
42. Bulbs - tubers - runners - rhizomes
Telophase I
Cervix
Natural Vegatative Propagation
Monocots
43. 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
Gametes
Spore Formation
Cellular Division (Unicellular Organisms)
hCG (human Chorionic Gonadotrophin)
44. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle
Sporophyte
Sexual Reproduction Requires
Secondary Oocyte
Ovaries
45. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere
Telophase I
Spermatozoa
oviduct
Natural Vegatative Propagation
46. Contains elongated cell with head - tail - neck - and body
Gonads
Mature sperm
Menses
Ovum
47. 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
Interphase
Telophase (Interphase)
Anaphase (Interphase)
Spermatids
48. 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
Fertilization
Cambium
Ferns
epicotyl
49. Female gonads that produce oocytes
Gametophyte Generation
Male Urethra
Vaginal Canal
Ovaries
50. Undifferentiated tissues in plants
First Meiotic Division
Endosperm
Meristems
Menses