Nondisjunction: failure of
chromosome or chromatid to
separate during cell division
Vocabulary Proto-oncogenes: helps a cell
grow and divide normally
Nucleosome: DNA wrapped
Oncogene: protooncogene that
around histones
starts working when it shouldn’t
Nucleus: DNA replication and
Chromosomal deletion: portion of
transcription occur here
a chromosome is gone
Dimers: monomers that interact
Haploid: only one set of
together, they can connect with
chromosomes
same or different molecules
Diploid: two sets of chromosomes
Tumor suppressor gene:
Rosalind Franklin: discovered
regulates apoptosis, when it gets
double helix structure
out of control tumors grow
Hershey and Chase: protein is
Chargoff: discovered that in DNA,
genetic material, a virus must
adenine and thymine have similar
enter a bacteria cell to infect it
amounts, as well as cytosine and
Griffith: mixed non virulent strand
guanine
and a heated virulent strand
Parts of DNA: a phosphate group,
which killed the mouse, showed
nitrogenous base, deoxyribose
viruses are able to transfer
sugar, nucleotides
genetic material
-parts of nucleotide: 2
Cleavage furrow: ident in the
nitrogenous bases, a deoxyribose
middle of a dividing cell
sugar, and a phosphate group
Malignant cells: cells that divided
Parts of RNA: same as DNA except
without control and are not killed
single strand and uracil
by usual circumstances
Epigenetics: the study of how
5 prime: phosphate attached to
behaviors and environment
deoxyribose
change genes
3 prime: OH attached to
Telomeres: ends of chromosomes
deoxyribose
that protect the genome
Centromeres: center of
chromosomes where spindle fibers
attach
Centrosomes: important for cell
structure, move to opposite sides
of the cell for division
Translocation: when a
chromosome breaks and
reattaches to a different
chromosome