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Genetics-McCall
Heredity
Question | Answer |
---|---|
What is heredity? | Physical characteristics being passed from parent to offspring |
What is a trait? | different forms of characteristics controlled by the alleles inherited from parents |
what are genetics? | scientific study of heredity |
what is a purebred? | have identical alleles-homozygous |
what is a hybred? | have 2 different alleles-heterozygous |
wht is a gene? | factors that control traits |
what is an allele? | different forms of a gene where some are dominant some are recessive |
what is a dominant allele? | always shows up in a trait if present-R |
what is a recessive allele? | hidden when dominate allele is present-shows only when two are present-r |
what is a punnet square? | shows all possibilities of a genetic cross |
what is a phenotype? | physical appearance |
what is a genotype? | genetic makeup |
what is a homozygous? | 2 identical alleles-purebred |
what is a heterozygous? | 2 different alleles-hybred |
Who is Mendel? | discovered genes and alleles proved that organisms were not simply a blend of their parents' characteristics but determined by individual seperate alleles inherited from each parent |
what is selective breeding? | process |