Basic Genetics (genotype, phenotype, punnett squares)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| physical characteristics that show up | phenotype
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| Used to predict possible genotypes for offspring of two parents | Punnett Square
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| What is a trait? | a physical characteristic studies in genetics
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| What controls traits? | genes
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| Cross a homozygous red rose (RR) with a homozygous white rose. (rr) What is the probability that you will have a red rose? | 100%
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| How many chromosomes do humans have? | 46
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| How many chromosomes are in a human's sex cells | 23
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| With sexual reproduction offspring- | will have a combination of the two parents' genes
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| With asexual reproduction offspring- | are identical to the parent
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| Heterozygous | having two different alleles for one trait
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| Homozygous | having two identical alleles for a trait
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| Dominant | Will always show up if it is present
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| Recessive | Will only show up if there are two
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| Heredity is- | the passing of genetic information from one generation to another
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| If tall flowers (T) are dominant to short flowers (t)-what is the probability of producing a tall flower if you cross two heterozygous flowers (Tt)? | 3 out of 4 or 75%
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| What are alleles? | different forms of a gene
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| actual genes an organism has for a particular trait (shown by letters) | genotype
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Created by:
dykesg
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