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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. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase
Spore Formation
Embryo
Centromere
Sexual Reproductive Mechanisms
2. 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
Regeneration
Sporophyte
Vegetative Propagation
Spores
3. Nuclear division and followed by cell division
Cytokinesis (Interphase)
Cortical Reaction
Head of Sperm
Karyokinesis
4. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes
epicotyl
Sporophyte
Internal Fertilization
Meiosis
5. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore
Gametophyte Generation
Angiosperms
Metaphase I
Anaphase (Interphase)
6. Flowering plants consisting of a few cells that exist for a very short time
Anther
Fertilization
Angiosperms
Scrotum
7. Part of embryo that is the precursor of the upper stem and leaves
Ovaries
epicotyl
Budding
Seed Coat
8. After ovulation - LH induces the ruptured follicle to develop into the corpus luteum
Dizygotic (Fraternal) Twins
Cellular Division (Unicellular Organisms)
Second Meiotic Division
Luteal Phase
9. Part of embry that are seed leaves
Cotyledons
Interphase
Hermaphrodites
Uterus
10. The male organ of the flower and consists of a thin - stalk-like filament
Cell Division
Budding
Stamen
Sexual Reproductive Mechanisms
11. Muscular chamber which is the site of fetal development
Estrogens
Uterus
Dizygotic (Fraternal) Twins
Menses
12. Pass from the testes through the vas deferens to the ejaculatory duct and then to the urethra
Primary Oocytes
Flagellum
Sperm Travels...
Ovum
13. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival
Sexual Reproduction in Angiosperms
Scrotum
Uterus
Estrogens
14. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries
Single Mature Egg
Sexual Reproduction Requires
Menses
Ovulation
15. Egg
Gametes
Cytokinesis (Interphase)
Ferns
Ovum
16. Female gonads that produce oocytes
Monocots
Sporophyte
Ovaries
Anaphase I
17. Located on scrotum -site for testosterone
Testes
Sexual Reproduction in Animals
Telophase I
Vegetative Propagation
18. Lower - narrow end of the uterus -connects with the vaginal canal
Cervix
Secondary Spermatocytes
Fertilization/Conjugation
Cellular Division (Unicellular Organisms)
19. Cell division that follows karyokinesis
Oocyte Cell Membrane
Partenogenesis
hCG (human Chorionic Gonadotrophin)
Cytokinesis
20. 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
Flower
Budding
Spore Formation
Primary Spermatocytes
21. Have two cotyledons that absorb the endosperm
Fertilization membrane
Cervix
Dicots
Secondary Oocyte
22. Reproductive structure of angiosperms
Flower
Urethra
Spermatozoa
Artificial Vegetative Propagation
23. 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
Tubers
Centromere
Estrogens
24. Produced when each meiotic division -rapidly degenerate
Polar Body
Meristems
Artificial Vegetative Propagation
Progesterone
25. 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
Oocytes
Disjunction
Ovulation
Cell Plate
26. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm
Cortical Reaction
Asexual Reproduction in Plants
Vegetative Propagation
Meristem Cells
27. The development of an unfertilized egg into an adult organism
Monocots
hCG (human Chorionic Gonadotrophin)
Fission
Partenogenesis
28. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen
Follicle
Sexual Reproduction in Animals
Interphase
Oocytes
29. 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
First Meiotic Division
Meisosis vs. Mitosis
Spermatogenesis
Fertilization membrane
30. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two
Anaphase (Interphase)
Cotyledons
Cellular Division (Multicellular Organisms)
Cell Division
31. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils
Sexual Reproduction Requires
Plant vs. Animal cells
Urethra
Sexual Reproduction in Angiosperms
32. 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
Monocots
Second Meiotic Division
Meiosis
Crossing Over
33. Steroid hormones necessary for normal female maturation -stimulate the development of the female reproductive tract and contribute to the development of secondary sexual characteristics and sex drive -responsible for the thickening of the endometrium
Prophase I
Estrogens
Artificial Vegetative Propagation
Cotyledons
34. Four haploid cells produced from the second meiotic division after secondary spermatocytes
Interphase
Female Sex Hormones
Spermatids
epicotyl
35. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes
Fertilization
Rhizomes
Ovum
Vaginal Canal
36. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes
Gonads
Sporophyte
Testosterone
Urethra
37. 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
Mitosis
Menstrual Cycle
Gametophyte Generation
Rhizomes
38. 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
Acrosomal Process
Prophase (Interphase)
Gametes
39. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm
Primary Spermatocytes
Tubers
Dizygotic (Fraternal) Twins
Menstrual Cycle
40. A means of reproduction
Cellular Division (Unicellular Organisms)
Cortical Reaction
Oogenesis
Secondary Oocyte
41. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear
Telophase (Interphase)
Prophase I
Spore Formation
Tetrad
42. Male gonads - produce sperm in the tightly coiled seminiferous tubules
Ovum
Testes
Rhizomes
Second Meiotic Division
43. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually
Sporophyte
Immature ovum
Gametophyte Generation
Spermatids
44. Undifferentiated tissues in plants
Ferns
Internal Fertilization
Meristems
Artificial Vegetative Propagation
45. Produces two intermediate daughter cells with N chromosomes with sister chromatids
First Meiotic Division
Zona Pellucida
Cellular Division (Multicellular Organisms)
Gonads
46. 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
Internal Fertilization
Centromere
Hypocotyl
Corona Radiata
47. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth
Prophase (Interphase)
Primary Oocytes
Cortical Reaction
Sexual Reproduction in Angiosperms
48. AKA ovanan or fallopian tube -opens into the upper end of the uterus
Urethra
Hermaphrodites
Follicle
oviduct
49. The production of female gametes -occurs in the ovarian follicles
Uterus
Ferns
Oogenesis
Mature Ovum
50. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants
Prophase I
Tubers
Dicots
Fertilization