B6 Flashcards
What is meiosis
The formation of four non identical cells from one cell to another
What is mitosis
This is the formation of two identical cells from one cell
How are gametes formed
Via meiosis
How many chromosomes does a normal human have
46 23 pairs
How for we get 46 chromosomes
When our gametes fuse together in reproduction
What is asexual reproduction
Involves one parent where it creates a copy of its self via mitosis (spider plant
How is meiosis done
.Cells make copies of chromosomes so it has double the genetic info
. The cell divides into two
. Then again
. Creating gametes which are genetically different due to random chromosomes
What happens after meiosis
More cells are made to form an embryo
What happens after and embryo is formed
The cells begin to take on different roles ( differentiation)
What
what are the advantages of sexual reproduction
this allows the animals to develop variation and have a longer survival time
although some individuals may die variation decreases the chance of the animals extinction
allows us to use selective breeding to get desired characteristics
speeds up natural selection
what are the advantages of asexual reproduction
only one parent is needed
uses less energy as it is faster due to mates not being needed
what is an example of an organism that uses both types of breeding
a mosquito uses both types of breeding
where do some mosquitoes breed
in the human hosts liver and blood cells
how do fungi reproduce
spores are produced asexually and are genetically identical
