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7th grade science
Genes and DNA
| Question | Answer |
|---|---|
| Which of the following is encoded in your DNA? | your eye color |
| What type of living organisms have no genetic material at all? | all living organisms have genetic material |
| DNA is the material that makes up_______________. | Genes |
| DNA carries ________________ information that is copied in each new cell. | coded |
| The DNA molecule looks like a _______________ ladder. | twisted |
| The two _______________ of DNA are long strings of nucleotides. | halves |
| The rungs of DNA are _________________________ bases. | complimentary |
| Because each base has a complimentary base, ___________________ can be replicated accurately. | DNA |
| A ___________________________ consists of a sugar, a phosphate, and a base. | nucleotide |
| In the 1950's, a biochemist found that the amount of adenine equals the amount of thymine and that the amount of guanine always equals the amount of cytosine. These findings are referred to as_______________ _______. | Chargraff's Rules |
| Rosalind Franklin made images of DNA molecules using a process known as ____________________. | X -ray diffraction |
| After seeing Franklin's x-ray images, ________ _______concluded that DNA must look like a long, twisted ladder. | Watson and Crick |
| The pairing of bases allows the cell to ______________, or make copies of, DNA> | replicate |
| During _____________, a DNA molecule is split down the middle, where the bases meet. | replication |
| What would be the complimentary DNA strand for CTTAGGCTTACCA? | GAATCCGAATGGT |
| If a sample of DNA contained 20% cytosine, what percent of guanine would be in this sample? | 20% |
| Which part isn't a part of a nucleotide? | fat |
| A gene is a set of instructions for assembling a _____________. | protein |
| Every ______________ has DNA in its cells. | organism |
| Cells make tissues, tissues make organs, organs make organ _________, and organ systems make organisms. | systems |
| Which of the following is not a type of mutation? | mutigene |
| What is the function of a ribosome? | mRNA is translated into proteins |
| In our lab, we found that DNA precipitates in ______________. | isopropyl alcohol |
| In our lab, we used soap to break open the ________ ___________. | cell membrane |
Created by:
masonteach
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