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7 Genetics REVIEW

Ms. Dallimore
Biology
Across
Condition where person is unable to break down phenylalanine.
Law of _____: Alleles separate from each other during meiosis and each parent can only provide one allele for each trait
Genotype of one dominant and one recessive allele (e.g. Rr)
Stronger of two genes expressed in the hybrid; represented by a capital letter (R)
Segments of chromosome that determines traits, codes for a particular protein
The physical feature resulting from a genotype (e.g. red, white)
Law of ___ ____(no space): Alleles for different traits are distributed to sex cells independently of one another.
A graphic representation of genetic inheritance, made up of a set of symbols that identify males, females, individuals affected by a particular trait.
Two forms of a gene (dominant and recessive)
_____ Square - used to help solve genetics problems
Traits (genes) located on the sex chromosomes
Passing of traits from parent to offspring
Male/female sex cells, sperm and egg
Down
___ Cancer may be caused by Tobacco use.
___ Cancer may be caused by sun exposure.
Study of heredity
Fusion of male/female gametes
The number and visual appearance of the chromosomes in the cell nuclei of an organism or species
Genotype involving two dominant or two recessive genes (e.g. RR or rr)
Long rod-shaped bodies in the nucleus that carry genetic material
Gene combination for a trait (e.g. RR, Rr, rr)
Diploid cell formed when sperm fertilizes egg
Two alleles are expressed in heterozygous individuals (ex. bloodtype)
Gene that shows up less often in a cross; represented by a lowercase letter (r)
_____ Dominance: the appearance of a 3rd phenotype
Law of ____: If a dominant allele for a trait is present in an organism's genotype, that trait will be expressed.
Most genetic disorders are caused by _____ traits.
_____ Disease may be caused by lack of exercise, poor diet, and stress.
Any characteristic that can be passed from parent to offspring