Chapter 16 - Genetics

DNA image

mutations image

replication image

Somatic mutation image

caused by mutagens

chemical image

biological image

insertion mutagen image

Repair process image

Genetic testing types image

monohybrid cross (only studies one gene individually)

complete dominance image

incomplete dominance image

MOM: Homozygous (white recessive) ww image


DAD: homozygous (Red Dominant) Rr image

Punnett squares!!

MOM: Homozygous (white recessive) ww image


DAD: homozygous (Red Dominant) Rr image

Baby #1: Heterozygous (Red Dominant) Rw image

Baby #2: Heterozygous (white recessive) rw image

Baby: heterozygus blend (red with white) Rw image

Dihybrid cross
(studies two genes simultaneously) image

Results depend on:

Dependent on if they are on different chromosomes or the same one
image

dependent on the position of genes on the chromosome
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Dihybrid cross
image

Monohybrid cross
image

Genetic inheritance

depends on dominance/recessiveness
image

depends on Quantitative Trait Loci image

depends on type of inheritance
image

Lethal mutations
image

Usually kill the plant

can be difficult to detect if it's effect is early

maternal inheritance
(uni-parental inheritance)
image

bi-parental inheritance

Can die before fertilization