Chapter 19 Vocab Flashcards
the physical appearance of a trait
phenotype
the actual site of crossing over
chiasma
the type of cell division that produces egg and sperm cells
meiosis
reproduction that involves the combining of genetic information from two parents
sexual reproduction
reproduction that does not involve gamete formation and fusion
asexual reproduction
the material and paternal alleles separate from each other during gamete formation
law of segregation
containing only a single set of chromosomes
haploid
a duplicated chromosome paired with it’s homologous duplicate chromosome
bivalent
the number of chromosomes in the cells is 2n (n is the number of homologous pairs)
diploid
the set of genes carried by an individual cell or organism
genotype
the haploid products of meiosis
gamete
one of a set of alternative forms of a gene
allele
any of the chromatids formed by replication of one chrome during S phase of the cell cycle while they are still joined by a centromere
sister chromatids
one of the two copies of a particular chromosome in diploid cells
homologous chromosomes
diploid cell produce by the fusion of male and female gametes
zygote
