B6- Inheritance, Variation and Evolution [2] Flashcards
Meiosis definition
A cell dividing twice to produce 4 genetically different cells
Mitosis
Cell division by one cell producing two identical cells
Hiw is DNA structured
A double helix structure
Chromosomes usually come in _______
Pairs
Genome definition
The entire set of genetic material
What is another name for a sex cell
A gamete
How many chromosomes are in a gamete
23
How many parents are involved in asexual reproduction
1
In asexual reproduction the new cell is a
Clone of the parent cell
Asexual reproduction happens by _____
Mitosis
Where does meiosis occur in humans
In reproductive organs when making gametes
What is used to find genetic probabilities
A punnet square
Name the male chromosome
XY
Name the female chromosome
XX
Define the term genotype
The alleles you have
Define the term phenotype
What you look like
Define the term homozygous
The same type of alleles
Define the term heterozygous
The opposite type of alleles
Define the term polydactyl
Being born with extra toes or fingers
