fertilisation Flashcards
(10 cards)
definition of fertilisation
when the nuclei of the male gamete and the nuclei of the female gamete fuse to create a zygote
why do the egg and the sperm have to fuse
50% of DNA comes from the mother and 50% of the DNA comes from the father so it makes 100% of DNA for the baby
definition of function
the activity or job something is meant to do
definition of adapted
when something is suited for its job
what does the jelly coat of the egg do
calcifies after one sperm reaches the egg to prevent any other sperm from entering
what does the cytoplasm of the egg cell do
contains a store of food and energy
what does the tip of the sperm do
contains chemicals to attack the coat of the egg
what does cytoplasm of the sperm do
keeps the sperm light and gives it a streamlined shape
what does the tail of the sperm do
helps the sperm to swim
what does the mitochondria in the sperm do
gives the sperm energy to swim to cell
