chapter 15 - the human genome Flashcards
genome
full set of genes in an organism’s DNA
karyotype
shows complete diploid set of a cell in order
sex chromosomes
2/46 chromosomes that determine an individual’s sex
autosomes
44/46 non-sex chromosomes
sex-linked gene
gene on a sex chromosome
pedigree
chart that shows trait relationships throughout generations of a family
nondisjunction
when homologus chromosomes fail to properly separate
typical male sex chromosomes:
XY
typical female sex chromosomes:
XX
huntington’s disease
autosomal dominant; harms brain at age 30-40, copies a codon over and over
cystic fibrosis
autosomal recessive; mucus builds up in lungs; having a single allele can prevent typhoid
sickle cell disease
autosomal recessive; changes shape of blood cells and has bad effects; having a single allele can prevent malaria