Science chapter 7
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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| What did mendel use to test inheritance of traits? | Pea Plants
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| How many factors did Mendel believe combined to make one trait? | 2 factors
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| What do we call the particales Mendel identified as factors? | Genes
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| Give 2 examples of gametes | Egg and Sperm Cell
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| How many chromosomes in human cells? | 46
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| How man pairs of chromosomes in a human cell? | 23
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| Is the number of chromosomes the same in all organisms | No
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| How many chromosomes are found in the sperm and egg cells? | 23
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| What is a Punnet Square used for? | To determin the genes of offspring
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| Give an example of a human characteristic that is hybrid | Being able to roll your tounge
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| Give an example of a human characteristic that is purebred | Height, eye color, hair color.
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| In humans, the #____ pair of chromosomes indicates the sex of the child | 23rd
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| The female sex chromosomes are____ and the male are____. | Female: Xx
Male: Xy
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| Does a mother or a father condribute the chromosome that determines the sex of the child? | Father
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| Give an example of a sex-linked trait. | Color blindness
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| Is the mother or Father responisble for passing on a sex linked trait? | Mother
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| Is color blindness a dominate or recessive trait? | Recessive
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| Genetics | The inheritance of traits.
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| Gregor Mendel | Munk who studied pea plants to learn about inheritance of traits.
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| Purebred | Same though generations
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| Hybrid | Offspring of two genetically unrealated parents.
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| Cross | Mating of organisms to test traits
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| Factors | Mendels word for genes
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| Dominate | Masked traits
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| Recessive | Can be Masked
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| Zygote | The initial cell formed when two gamete cells are joined by means of sexual reproduction
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| Gamete | A cell that carries half the genes
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| Genotype | Its the code for characteristics
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| Phenotype | Physical characteristics
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| Genes | DNA segments
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| Incomplete dominace | Combined traits
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| Multi-gene inheritace | More than 2 genes
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| Sex-linked trait | An inherited trait, that has corisponding on X not Y
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| Carrier | You have the gene for a trait but its masked
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| Inheited disorder | 2 traits combined to form a third
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