Gene Expression/ Inheritance Patterns 10th Grade
Description: Gene Expression Inheritance Patterns 10th Grade Biology Mr. Coombs Genes Can be dominant or recessive Not always this simple Why do muscle cells differ from skin cells? Each cell reads the DNA code differently. Different mRNA codons can
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slide1. Gene Expression/ Inheritance Patterns 10th Grade Biology
Mr. Coombs<br>
slide2. Genes Can be dominant or recessive
Not always this simple
Why do muscle cells differ from skin cells?
Each cell reads the DNA code differently. Different mRNA codons can produce different amino acids in a protein. Thus, cells differ in form and function.
Homozygous, heterozygous
Can have the trait even though it is not being expressed.<br>
slide3. Incomplete Dominance The phenotype of the offspring is a mix between the two genotypes of the parents. Example: a red flower x a white flower= a pink flower<br>
slide4. Codominant Alleles Causes the offspring to have both genotypes which are equally expressed. Example: a Black rooster x a white chicken= a checkered rooster.<br>
slide5. Polygenic Inheritance The pattern controlled by two or more genes.
Example: height in humans, Skin color.<br>
slide6. Internal Factors Eating Breakfast
Heart Attacks
Genes are turned on when needed and off when not needed<br>
slide7. Environmental Influences The environment around the organism can influence the genotype.
Examples: Arctic Fox; Rainbow Trout; Crocodile sexes<br>
Mr. Coombs<br>
slide2. Genes Can be dominant or recessive
Not always this simple
Why do muscle cells differ from skin cells?
Each cell reads the DNA code differently. Different mRNA codons can produce different amino acids in a protein. Thus, cells differ in form and function.
Homozygous, heterozygous
Can have the trait even though it is not being expressed.<br>
slide3. Incomplete Dominance The phenotype of the offspring is a mix between the two genotypes of the parents. Example: a red flower x a white flower= a pink flower<br>
slide4. Codominant Alleles Causes the offspring to have both genotypes which are equally expressed. Example: a Black rooster x a white chicken= a checkered rooster.<br>
slide5. Polygenic Inheritance The pattern controlled by two or more genes.
Example: height in humans, Skin color.<br>
slide6. Internal Factors Eating Breakfast
Heart Attacks
Genes are turned on when needed and off when not needed<br>
slide7. Environmental Influences The environment around the organism can influence the genotype.
Examples: Arctic Fox; Rainbow Trout; Crocodile sexes<br>