Genetics Flashcards
Mendel’s Principal of Segregation?
1/2 of genes are passes on, one carries one allele, the other carries the other.
gene?
distinct particles that stay the same from one generation to the next
allele
2 copies of each gene in sex cells
dominant allele
will show if paired with a recessive allele
recessive allele
un expressed
heterozygous organism
genes are different
homozygous organism
genes are the same
genotype
set of genes
phenotype
observable trait
Mendel’s Principal of Independent Assortment
you can get different traits from different ancestors
How does Meiosis contribute to independent assortment?
crossing over between chromatids results in recombinations
Chromasome
genetic info coded in carbon formed in covalent bonds
Cause of genetic mutation
breaks in covalent bonds
How does ionizing radiation damage DNA?
breaks covalent bonds
Why are bone marrow and gastrointestinal cells more vulnerable to radiation?
reproduce more oftern