Biology- vocab Flashcards
Autosome
any chromosome that is not a sex chromosome
Haploid cell
a cell that contains a single set of chromosomes
Diploid cell
Has two copies of each chromosome
Gene locus
a specific location of a gene on a chromosome
Sister chromatids
identical copies formed by DNA replication
Gametes
sex cells (male and female)
Crossing over
the exchange of DNA between paired homologous chromosomes
Somatic cells
cells in the body other than sperm and egg cells
Genetic recombination
the physical breakage, exchange, and rejoining of two DNA molecules
Nondisjunction
Failure of homologous chromosomes to separate
Karyotype
an individuals complete set of chromosomes
Zygote
a diploid cell resulting from the fusion of two haploid gametes
Tetrad
a group or set of four
Spermatocyte
the production of sperm cells
Homologous chromosomes
two same chromosome pairs