lecture 16 - Meiosis 1 + Sexual Reproduction Flashcards
(25 cards)
Genomes are where
chromosomes in the nucleus of the cell
Karyotype is
appearance of nuclei in the cell
Genomes contain
all protein making information
Phenotypes are
characteristics based on genes
Gene locos are
locations of specific pairs of genes
Homologous chromosomes are
same genes and location, but different versions of the genes
Alleles are
alternate versions of gene pairs
Genotype is
which alleles are in the gene locus
Maternal and Parental genes
male and female genes
Gametes are/have
sexual cells for reproduction, 1/2 the cell info.
Diploid is
2 versions of a chromosome
Haploid is
1 version of a chromosome
Ploidy is
number of sets of chromosomes in a cell
Meiosis is
reduction division of chromosomes
Meiosis is instead of
the Mitotic phase
Meiosis steps
homologous chromosomes separate, chromatids separate, meiosis into gametes
Non-sister chromatids are
almost identical chromatids, but different alleles
difference of meiosis and mitosis
location of pairs, separation of pairs
Metaphase changes with both meiosis and mitosis with
mitosis is when the chromatids align, meiosis is when the two homologous pairs align
Crossing over is
when no information is lost, but chromosomes swap pieces
Recombinant genes are
crossing over allows crossing of gametes in a gene
Independent assortment occurs
during metaphase 1 of meiosis 1
Meiosis 1 is
when the chromosome number is halved, but not lost, into two cells (homologous reduced)
Meiosis 2 is
separating the sister chromatids into 2 haploid cells
