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Heredity and Genetics Vocabulary (Grade 7)

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Heredity and Genetics Vocabulary

Instructions: Use the word bank to complete each statement about genetics and heredity.

Word Bank: phenotype; Punnett square; gene; heredity; 46; genome; chromosomes; genotype; pea; mutations; genetics; 23; DNA; chromatid; trait; alleles

1. 
The study of heredity is called                       .
2. 
The basic molecule of life is called                     .
3. 
Structures made of DNA and other molecules are                             .
4. 
Each identical rod in a chromosome is called a(n)                         .
5. 
A small section of DNA is called a                   .
6. 
When DNA copies itself, it is not always perfect. The mistakes made are called                         .
7. 
Different versions of the same gene are called                     .
8. 
Humans have            pairs of chromosomes, making a total of            chromosomes.
9. 
The genetic make-up of an organism is known as its                       . The actual physical expression of those genes is called its                         .
10. 
                       is the passing of genes from parents to offspring.
11. 
A(n)                    is all the DNA in one cell of an organism.
12. 
A physical characteristic is a                   .
13. 
A                                    is a chart that shows possible gene combinations.
14. 
Gregor Mendel was the father of genetics and studied                    plants.
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