Term
| What is the process of copying DNA prior to cell replication |
|
Definition
|
|
Term
| What serves as a template for DNA replication |
|
Definition
| Each of the original DNA strands |
|
|
Term
| What must occur for an organism to pass genetic information on to its offspring? |
|
Definition
| The parent must copy its own DNA and provide a copy on to his offspring |
|
|
Term
| What is the function of stabilizing proteins? |
|
Definition
| To hold the separated strands apart and prevent degradation |
|
|
Term
| The replication for moves... |
|
Definition
| ahead of the newly synthesized DNA |
|
|
Term
| What is the role of DNA helicase in DNA replication? |
|
Definition
| To use the energy from ATP to break the hydrogen bonds and b/t the two DNA strands, thereby "Unzipping" the molecule |
|
|
Term
| What is meant by semiconservative replication? |
|
Definition
| The new copies of DNA contain one original strand and one new strand of DNA |
|
|
Term
|
Definition
| The point where the DNA helicase is "unzipping" the double stranded DNA molecule |
|
|
Term
|
Definition
They always occur in a certain order:
Adenine - Thymine
Cytosine - Guanine
Uracil - Found in RNA, it base-pairs with adenine and replaces thymine during DNA transcription. |
|
|
Term
|
Definition
| A segment of DNA that encodes a functional product,usually a protein |
|
|
Term
|
Definition
| The molecular study of genomes |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
The study of how genes:
carry info
how info is expressed
how genes are replicated |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
The structural units of nucleic acids
(DNA and RNA) |
|
|
Term
| How many parts does a nucleotide have? What are they? |
|
Definition
3
A nitrogen containing base
a pentose (5 carbon sugar) deoxyribose or ribose
a phosphate group (phosporic acid |
|
|
Term
| What are nitrogen-containing bases made up of? |
|
Definition
Cyclic Compounds
Carbon, hydrogen, oxygen and nitrogen atoms
Adenine (A) Thymine (T)
Cytosine (C) and guanine (G)
Uracil (U) |
|
|
Term
| What is a DNA polymerase? |
|
Definition
| an enzyme that catalized the polymerization of deoxynucleotides into DNA |
|
|
Term
|
Definition
| DNA is a macromolecule composed of repeating units called nucleotides. It is the blueprint for a cell's protein and is obtained from a parent cell and from another cell |
|
|
Term
|
Definition
| All of the genetic information in a cell |
|
|
Term
|
Definition
| Structure containing DNA that physically carries hereditary. |
|
|
Term
| Which enzyme can synthesize new strands of DNA |
|
Definition
|
|
Term
| Why is primase essential for DNA Replication? |
|
Definition
| It provides a 3' end of the newly synthesized strands, allowing DNA polymerase to begin coping DNA |
|
|
Term
| DNA synthesis occurs in what direction/ |
|
Definition
| from 5' to 3' on both the leading and the lagging strands |
|
|
Term
| How does the DNA polymerase know which nucleotide triphosphate to add to the growing strands? |
|
Definition
| It hydrogen bonds the nucleotide to the parental strand, pairing adenines to thymine and guanines to cytosines. |
|
|
Term
| what might happen if the cell does not have RNase? |
|
Definition
| The newly made chromosome would consist of DNA and RNA molecules. |
|
|
