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Science Test
| Question | Answer |
|---|---|
| What does heredity ? | passing traits from offspring |
| What are genetics ? | the study of heredity and variation in organisms |
| What is DNA? | a double stranded helical nucleic acid molecule that codes ans stores genetic information it determines the inherited structure of cells proteins |
| What are chromosomes? | thread like strands of DNA and protein in a cell nucleus that carry the code fr the inherited characteristics of an organism |
| What is a gene? | a distinct unit of hereditary material found in chromosomes the region of DNA that directs the making of a specific protein thus controlling traits that are passed in offspring |
| What is an allele? | different forms of a gene controlling a particular trait; e.g.,one allele fro height may be short while another allele may be tall |
| What is a dominant allele? | the from of a gene that appears to dominate or mask another form of the same trait the form of the allele that is most often expressed in the phenotype |
| What is a recessive allele? | the from of a gene that is often masked by the dominant allele and is therefore often not expressed in the phenotype |
| What does homologous mean? | Same |
| What is a genotype ? | the genetic makeup of an individual |
| What is a phenotype ? | the physical traits that appear in an individual as a result of its genetic makeup |
| What is a punnett square ? | a chart that defines either your genotype or phenotype |
| Who two people made the first DNA model? | James Watson and Francis Crick |
| What always goes with Adenine (A)? | Thymine (T) |
| What always goes with Cytosine (C)? | Guanine (G) |
| What does RNA mean? | Ribonucleic Acid |
| What would go with these letters? " ATGCATAGCCGTATC" in DNA | TACGTATCGGCATAG |
| Who made the Chargaff's rules? | Erwin Chargaff |
| Who is considered the "Father" of Genetics? | Gregor Mendel |
| What did Mendel use to explore genetics or DNA | Pea plants |
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kmf2223