Genes & Heredity (Part 2 of 2)
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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DNA | Double helix long, twisted molecule strand; Stores heredity information;
4 different chemical bases:
Adenine--Thymine;
Guanine--Cytosine
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RNA | Single helix strand
Has four bases---> Adenine - Uracil Guanine - Cytosine
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REPLICATE | To copy or duplicate itself
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CHROMOSOME | Threadlike structure in the cell nucleus;
Carries genetic information in DNA molecules
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"X" CHROMOSOME | One of the two chromosomes that determine the sex
Female egg cell has TWO “X” chromosomes
Male sperm cell has ONE “X” chromosome
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"y" CHROMOSOME | One of the two chromosomes that determine the sex
Male sperm cell has ONE X chromosome and ONE Y chromosome;
Male sperm determines the sex of offspring
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PUNNETT SQUARE | Diagram used by scientists PREDICTS probability off-spring will inherit a trait.
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PEDIGREE CHART | Diagram used by scientists to TRACE present of a genetic disease in a family. i.e., sickle cell
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MUTATION | A change with a gene or chromosome; Caused randomly or by environmental conditions.
In "sex" cells (sperm/egg)--passed down to the next generation
In "body" cells--function of cell could be effected; however, may not pass to next generation
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CLONING | Process used by scientists; Reproduces an organism from its own DNA
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
pj johnson
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