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Science Test #2
| Question | Answer |
|---|---|
| the passing of genetic traits from parent to offspring. | heredity |
| An allele whose trait always shows up in the organism when the allele is present. | dominant allele |
| An allele whose trait only shows up when no dominant allele is present. | recessive allele |
| one set of instructions for an inherited trait | gene |
| one of the alternative forms of a gene that governs a characteristic, such as hair color | allele |
| an organism's appearance or other detectable characteristic | phenotype |
| genetic makeup. Always letters | Genotype |
| the chances of something happening | Probability |
| having two of the same genes for the trait (sometimes called purebred). | Homozygous |
| having two different genes for a trait (sometimes called hybrid). | Heterozygous |
| father of genetics | Gregor Mendel |
| Complex molecules which make up structures and carry out functions of an organism. MADE IN THE RIBOSOMES! | Protein |
| A characteristic that an organism can pass on to its offspring through its genes | Trait |
| Complex molecule that carries genetic information that defines an organism's traits. (found in the nucelus) | DNA |
| A single piece of coiled DNA found in the cells; contains genes that encode traits. YOU HAVE 23 PAIRS OF THESE | Chromosomes |
| the study of how characteristics of living things are controlled by genes | Genetics |
| What are the different forms of a gene called? | Allele |
| Which form of a gene is represented by a lowercase letter? | Recessive |
| a change in the DNA sequence | Mutation |
| Which form of a gene is represented by a capital letter? | Dominant |
| What does purebred mean? | An organism with all the same type of gene |
| Gregor Mendel was a | Monk |
| Gregor Mendel experimented | Pea plants |
| A chart used to show or predict the possible gene combination in a cross between two organisms for a given trait | Punnett Square |
| How big did Gregor mendel expect the pea plants to be | Medium |
| The actual size of the pea plant | Tall |
| Gregor Mendel observed pea plants to determine the pair of | Genes |
| Heterozygous or Homozygous: TT | Homozygous |
| Heterozygous or Homozygous: Gg | Heterozygous |
| Will this trait show up DOMINANT or RECESSIVE: Rr | Dominant |
| Which of the following is HOMOzygous DOMINANT? TT or Tt | TT |
| What are the possible ways to have a RECESSIVE trait: | All lowercase letters |
| Black noses are dominant (B) and pink noses are recessive (b) in dogs. A dog has a pink nose. What would the dogs genes be? | bb |
| Being able to roll the tongue is a dominant trait (T). Not being able to roll the tongue is a recessive trait (t). A persons genes are Tt. Which trait would they have? | Able to roll tongue |
| The trait that will be expressed ONLY if two copies of the allele are present. | Recessive |
| Why do Alleles come in pairs? | One comes from Mom and One comes from Dad |
| The trait that will ALWAYS be expressed if at least one copy of an allele is present. | Dominant |
| Just at looking at a guinea pig you would be able to tell if its genotype were HH or Hh. | False |
| Where do you put the parents' genotypes when you're doing a Punnett Square? | Outside the box on the top and left |
| Is a Punnett square going to correctly predict the right thing every time? | No |
Created by:
JaydenWall13