Section 3 Flashcards
Where DNA is found, what it is made of
Inside the nucleus we find chromosomes witch are long stands of DNA
Total of 46 chromosomes
Chromosomes
Long stands of DNA
Gene
Can have variations that will results in different traits
Alleles
A section of the DNA where it has variations
How many chromosomes, where we get them
We have 23 pair of chromosomes witch = 46
We get half from mom and half from dad
How mitosis and meiosis work, when used in bodies
Mitosis repairs skin cells
Meiosis reproduction
Similarities and differences between mitosis and meiosis
Similarities
Both double
Split off
Differences
Meiosis Splits off twice
Haploid and diploid
Haploid single set of unpairs chromosomes first number
Diploid contains two sets of chromosomes when it doubles
How dominant and recessive traits work
Dominate is what u can see
Ex he has brown eyes
Recessive is what u can’t see
Ex pure bird
Incomplete dominance
Mix of two Traits together