Meiosis Flashcards
Genes
Hereditary unit; program specific traits
Gametes
Reproductive cells; transmits genes from one generation to the next
Somatic Cells
All cells of the body except gametes
Locus
Gene’s specific location along the length of a chromosome
Asexual Reproduction
- Single individual is sole parent
- Parent passes copies of all its genes to offspring
- No fusion of gametes
- Mitotic cell division
Clone
Individual genetically identical to parent (who asexually reproduced)
Sexual Reproduction
- Two parents create an offspring that has a unique combination of genes inherited from both parents
- Genetic variation
Life Cycle
Generation-to-generation sequence of stages in reproductive history of organism
How many chromosomes in somatic cells for humans?
46
Karyotype
Ordered display of 23 pairs of chromosomes
Homologous Chromosomes (Homologs)
Two chromosomes of a pair that have the same length, centromere position, and staining pattern
What do homologous chromosomes carry?
Each pair carries genes controlling the same inherited traits
Sex Chromosomes
X and Y chromosomes
Autosomes
Chromosomes that aren’t sex chromosomes
Diploid Cell
Any cell with 2 sets of chromosomes (2n); somatic cells