Reproduction (Lecture 8) Flashcards
Types of Asexual Reproduction (Hint: BF-B-F-P)
Binary Fission
Budding
Fragmentation
Parthenogenesis
Division of a single parent cell equally into 2 daughter cells
Binary Fission
The unequal splitting of a parent cell or parent organism into two unequally sized offspring
Budding
A piece of an organism breaks away and is capable of becoming another genetically identical individual
Fragmentation
The development of an unfertilized egg into a new individual
Parthenogenesis
Two parent contribute genetics to produce offspring that are genetically unique from each other and from the two parents
Sexual Reproduction
The fusion of a sperm cell with an egg cell
Fertilization
A fertilized egg
Zygote
The replacement of lost body parts that is performed by the parent once the fragment breaks away
Regeneration
The production of Gametes
Meiosis
The sex cells (Sperm and Egg)
Gametes
The haploid number of chromosomes (Half the number of full chromosomes for a species (n))
23 Chromosomes (Unpaired)
Where does Meiosis occur? What does it produce?
In the gonads of animals
Production of Gametes
How many cells can be produced from a single initial Gamete
Four
Chromosomes that are identical in size, shape, and the traits they carry
Homologous Chromosomes
How many pairs of Chromosomes do humans possess?
23 Pairs
How many pairs of homologous autosomes do human beings possess?
22 Pairs
How many pairs of sex chromosomes do human beings possess?
1 Pair
Chromosomes that do not influence gender
Autosomes
Female Sex Chromosomes
XX
Male Sex Chromosomes
XY
Preparation period for cell division
Interphase
A brief period of nothingness between Meiosis I and Meiosis II
Interkinesis
Production of sperm in the testes
Spematogenesis
Production of eggs (ova) in the ovaries
Oogenesis
