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Genetics (Mono hybrid crosses (Complete dominance (Dominant/recessive, One…
Genetics
Mono hybrid crosses
Incomplete dominance
Half and half
Cross heterozygous with itself
Selfing
Complete dominance
Dominant/recessive
One or the other
Test cross
To find genotype
Multiple alleles
Many forms of genes
Mutations
Causes
Mutagen causes mutations
Effects
Can have no effect
No function
Almost always harmful
DNA repair
Recognize & remove mutations
Somatic mutations
In Cells that never = sex cells
Dihybrid crosses
Independent assortment
Genes of one allele move independently from another
Linkage
No independent assortment in meiosis I
Crossing over
Switch pieces
Other aspects of inheritance
Maternal inheritance
Alleles from both transmitted equally
Sperm lose cytoplasm
Lethal alleles
Presence can kill
Difficult to detect
Affects basic metabolic function
Multiple sets of chromosomes
Triploid
Multiple copies constitute gene family
Replications of DNA
S phase
DNA X 2
Multiple genes for one character
Many genes may affect 1 trait