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Quiz on DNA
The quiz with only DNA things.
| Question | Answer |
|---|---|
| What is DNA? | --It carries the genetic code for living organisms --It carries codes for traits |
| Shape of DNA | It is called a DOUBLE HELIX or A twisted ladder |
| What is DNA made up of? | --DNA is made up of nucleotides. A nucleotide consists of a sugar, phosphate and a base |
| Structure of DNA | The sides of DNA are made of alternating sugar and phosphate. --The steps of DNA are made of nitrogenous bases A, T, G, C --The bases are always in matching pairs A = T G = C |
| Where you can find DNA? | Cell - Nucleus - Chromosomes - DNA |
| Rosalind Franklin | She used x-ray pictures to discover the structure of DNA |
| James Watson and Francis Crick | Made the first 3-Dimensional model of DNA |
| Gregor Mendel (Father of Genetics) | *He studied pea plants. *He used them to see how traits were passed down from one generation to the next (Inheritance Patterns). |
| Chromosomes | --Contain DNA --Humans have 46 chromosomes in |
| Alleles | different forms of a gene |
| Example of alleles | If gene - fur color, alleles - Black, Blonde, Chocolate |
| Inherited Traits | Examples: natural eye color Hair color Freckles Widow’s peak Hitchhiker thumb |
| Acquired Traits | A learned trait or something that happens to you. |
| Genetic Engineering | Adding genes to an organism to improve that organism. Examples: --adding genes to potatoes to produce a vaccine for chloera --adding genes to oranges so they can survive freezing temperatures |
| Punnett squares | -A chart used to find the probability of a trait being passed down a generation. |
| Phenotype | Physical appearance (what you see) Examples: Blue eyes, curly hair, black fur |
| Genotype | -Genes, represented by alleles Examples: AA, Aa, aa |
| Heterozygous | -different alleles, Aa |
| Homozygous | -same alleles, AA aa |
| What structure do you find DNA on? | Chromosomes |
| Which part of the picture carries the code for a trait? | A little section of DNA |
| What bases match up in a DNA molecule? | A - T G - C |
| Which of the following traits rely completely on genetics? | Height Hitchhiker thumb Freckles Suntan Intelligence (2, 3) |
| Chocolate, Vanilla and Coffee are different flavors of ice cream like alleles are different types of genes | nothing |
| What part of DNA carries the chemical code? | The nitrogen bases, AT and GC. |
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