Let’s see how you did! If you didn’t get a few of these, don’t let it stress you out – it just means you need to play with more experiments in this area. We’re all works in progress, and we have our entire lifetime to puzzle together the mysteries of the universe!
Simply click here for printable questions and answers.
Answers:
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1. Something close to: the science of heredity, dealing with resemblances and differences of related organisms resulting from the interactions of their genes and the environment.
2. Mendel observed traits in pea plants over many generations. He kept careful note of which traits appeared in each generation.
3. P represents the parental generation, F1 represents the generation of the offspring of P, and F2 represents the generation of the offspring of F1.
4. In the F1 generation was 100% tall, and the F2 generation was 75% tall and 25% short.
5. Dominant traits are always expressed when present, recessive traits are only expressed when they both alleles are recessive.
6. A table used for keeping track of the inheritance of genes.
7. Red. Orange. Mendel’s law of segregation predicts that dominant genes when crossed with the recessive allele will only express the dominant genes in the F1 generation, then express the dominant gene 75% of the time in the F2.
8. The individual codes for making proteins located in the DNA.
9. Phenotypes are the appearance of the organism—the physical traits. Genotypes are the genes that produce the trait.
10. Incomplete dominance is a shared expression of two traits. Codominance is the duel expression of two dominant traits.
11. Inherited genetic disorders—defective genes or chromosomes.
12. X or Y.
13. 100.
14. Enzymes used to cut specific sequences of DNA.
15. The Human Genome Project successfully sequenced over 20,000 human genes and mapped them on the 23 human chromosomes.
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