5 Flashcards
Bb
Hybrid
heterozygous
Can’t see
Genes
Physical, you can see it
Phenotype
Sex cells
Gametes
Neither is completely dominant, they blend
Incomplete dominance
Both alleles are expressed (AB type blood)
Co Dominance
Haploid
(n) - germ/sex cells
Diploid
(2n) - somatic cells
How many chromatids are there in S Phase of Meiosis?
92
Allows us to have children and there to be different variations
Meiosis
Display all 46 chromosomes
Karotyoes
Generic swapping done in prophase 1
Cross over
Stags of meiosis
PMAT
Crossover occurs in
Prophase 1
BB
Homozygous dominant
Organism’s gen genetic make up for a trait (bb, BB, Bb)
Genotype
XX - chromosomes are the same
Homologous
XY (chromosomes are different)
Heterologous
Dominant allele is expressed
Complete dominance
Family history of a trait
Pedigree
Unit of hereditary information in the form of DNA nucleotides
Gene
Location of a gene on a chromosome
Locus
Fusion of egg and sperm together
Fertilization
Meiosis
Have 1 DNA replication followed by 2 cell divisions ending with 4 haploid cells
Crossover
“Genetic swapping” in prophase 1
Chromatid pairs independently sort as they line up in
Metaphase 1
Sister chromatids separate in
Anaphase 2
Failure to separate during Anaphase
Non-disjunction
Organism’s gen genetic make up for a trait (bb, BB, Bb)
Genotype
XX - chromosomes are the same
Homologous
XY (chromosomes are different)
Heterologous
Dominant allele is expressed
Complete dominance
Family history of a trait
Pedigree
Unit of hereditary information in the form of DNA nucleotides
Gene
Location of a gene on a chromosome
Locus
Fusion of egg and sperm together
Fertilization
Meiosis
Have 1 DNA replication followed by 2 cell divisions ending with 4 haploid cells
Crossover
“Genetic swapping” in prophase 1
Chromatid pairs independently sort as they line up in
Metaphase 1
Sister chromatids separate in
Anaphase 2
Failure to separate during Anaphase
Non-disjunction
Abnormal number of chromosomes
Aneuploidy
