Genetics Word Scramble
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| What tries to answer how a parent passes certain genes onto their offspring? | heredity, |
| Genes are inherited from both parents through ______ reproduction. | sexual |
| These genes express specific _______ or characteristics. | traits |
| “Father of modern genetics” | Gregor Mendel |
| What did Mendel do? | Discovered the basic principles of heredity by Experimenting on pea plants and showed that their traits follow a particular pattern. |
| These are found in the nucleus of a cell and carry genes. | Chromosomes |
| Segments of DNA on a chromosome that are responsible for inherited traits. | Genes |
| The genetic makeup of an organism. | Genotype |
| The appearance of an organism based on its genotype. | Phenotype |
| Variants (differences) in a gene | Alleles |
| Occurs on a fixed spot (band) on a chromosome. | Alleles |
| What might an allele indicate? | blood type, color blindness, or many other traits. |
| Describes how likely it is for certain phenotype traits to pass from parent to offspring. | Dominant or Recessive |
| These show their effect with only one copy of the allele (Dd) | Dominant alleles |
| These show their effect with two copies of the allele (dd) | Recessive Alleles |
| Genetically determined characteristics. | Inherited Traits |
| Because traits come from both parents - | offspring have a combination of both parents’ genes. |
| What are some examples of inherited traits? | skin, hair, color, height, freckles |
| Carries two copies of the same dominant allele (BB) | Homozygous Dominant |
| Carries two copies of the same recessive allele (bb) | Homozygous Recessive |
| Carries two different alleles of a gene (Bb) | Heterozygous |
| Probability is expressed in a ______ | percentage. |
| Examines just one of the many genes that get passed on during sexual reproduction | Punnett Square |
| A Punnett Square shows all possible ways the offspring could inherit the gene from two parents. | Punnett Square |
| A diagram used by geneticists to determine the probability (chance) of an offspring having a particular phenotype. | Punnett Square |
| Genotypic ratio of a heterozygous cross (Tt xTt) | 1 TT : 2 Tt : 1tt |
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judi829
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