Lecture 2
Structure of Gametogenesis/gametes
عدد الخيارات في هذه العجلة: 31
- behind the kidney
- posterior end of the abdominal activity
- ventral abdominal wall
- at the base of the tail
- non pendulous scrotum underneath the anus
- pendulous scotum
- sperm produce in where?
- they are composed of developing sperm cells surrounding a lumen, the hollow center of the tubule, where formed sperm are released into the duct system of the testis.
- Mature egg cell-
- Mature sperm cell-
- Parts of mature sperm
- 3 glands of testis
- -must allow sperm to travel long distance, plenty of energy needed
- -microtubules in a 9+2 configuration
- Abnormalities of sperm cell
- Longest sperm
- mouse sperm size
- synthesized and stores proteins (in yolk) as reservoir for the developing embryo
- must contain nourishment inside the egg (having big yolk inside)
- parts of egg cell
- many components, contains nutritional reserves in the form of yolk
- contains glycoproteins essential for species specificity and sperm landing
- egg cell presence of glycoproteins can detect if the same species of sperm
- extra coating made of extracellular matrix
- layer of cells that nurture the egg
- innermost layer (egg cell)
- Beneath cell membrane
- inside cortex
- fertilization of an egg by more than one sperm
- fertilization of an egg by one sperm
- Phases of Gametogenesis