Module 6 - Meiosis Part II (Gametogenesis) Flashcards
In humans, _ is the process of producing gametes, or sex cells.
gametogenesis
_ is the process of producing sperm cells in males.
Spermatogenesis
_ is the process of producing sperm cells in males.
Spermatogenesis
_ is the process of producing egg cells in females.
oogenesis
In spermatogenesis, the _ forms into the primary spermatocyte.
spermatogonium
In spermatogenesis, the _ forms into the primary spermatocyte.
spermatogonium
The primary spermatocyte enters meiosis I to produce _.
two secondary spermatocytes
The primary spermatocyte enters meiosis I to produce _.
two secondary spermatocytes
The secondary spermatocytes enter meiosis Il to produce _.
four haploid spermatids
Spermatids undergo _, wherein spermatids mature into motile spermatozoa, which are the sperm cells.
spermiogenesis
Spermatids undergo _, wherein spermatids mature into motile spermatozoa, which are the sperm cells.
spermiogenesis
sperm cells
spermatozoa
sperm cells
spermatozoa
Thus, each cycle of spermatogenesis produces _ from one spermatogonium.
four sperm cells
Oogenesis starts with the _.
oogonium
Oogenesis starts with the _.
oogonium
The oogonium becomes the _ which will enter meiosis I.
primary oocyte
The oogonium becomes the _ which will enter meiosis I.
primary oocyte
The result from this is _ and _.
one secondary oocyte and one polar body
The result from this is _ and _.
one secondary oocyte and one polar body
The secondary oocyte will then enter meiosis II to produce _ and _.
one egg cell and another polar body;
The secondary oocyte will then enter meiosis II to produce _ and _.
one egg cell and another polar body;
The first polar body divides to form _.
two polar bodies
Polar bodies cannot be fertilized by a sperm. Thus, each cycle of cogenesis produces _, all from one oogonium.
one egg cell and three polar bodies
Polar bodies cannot be fertilized by a sperm. Thus, each cycle of cogenesis produces _, all from one oogonium.
one egg cell and three polar bodies
The haploid sperm and egg produced in meiosis will meet during _.
fertilization
The resulting fertilized egg is _, with half of the chromosomes coming from each parent.
Thus, it is in fertilization where the original _ number of chromosomes in a species is restored.
diploid
