Term
|
Definition
| a long strand of DNA, wrapped tightly into the nucleus |
|
|
Term
| Eight histone molecules are called |
|
Definition
|
|
Term
|
Definition
| DNA that is visible in the light microscope |
|
|
Term
|
Definition
| DNA binding proteins around which the DNA coils in a characteristic fashion |
|
|
Term
| At the time of cell division, the supercoil... |
|
Definition
| is further packaged so that it forms the typical x-shaped structures seen in metaphase of cell division. |
|
|
Term
| Structure of the DNA Molecule |
|
Definition
Cytosine, guanine, and thymine; and phosphate groups
Each strand is formed by the phosphate linkages from one deoxyribose to the next along the strand.
The two strands are held together by hydrogen bonding between the bases |
|
|
Term
| where is the DNA in eukaryotes and prokaryotes |
|
Definition
eukaryotes: nucleus
Prokaryotes: cytoplasm |
|
|
Term
|
Definition
| he sequence of bases within the DNA molecule that encodes for one protein |
|
|
Term
|
Definition
| an enzyme uncoils the DNA molecule and the two strands of the molecule become separated as the hydrogen bonds holding the bases together are broken to form the replication fork |
|
|
Term
| DNA replication is said to be |
|
Definition
| self-replicating and semi conservative. |
|
|
Term
| what pairs old DNA bases with new ones? |
|
Definition
| the enzyme DNA polymerase |
|
|
Term
|
Definition
pair new bases with the old bases on the template strand
forms the phosphodiester links that connect the deoxyriboses one to another in the backbone of the molecule |
|
|
Term
|
Definition
replication progresses in fits
starts in the direction opposite to the movement of the polymerase |
|
|
Term
| an enzyme that breaks hydrogen bonds holding bases together |
|
Definition
|
|
Term
| DNA polymerase uses ___ as an energy source |
|
Definition
|
|
Term
| polypeptide chain is also known as a |
|
Definition
|
|
Term
| The leader sequence which is sometimes called the signal peptide is important in |
|
Definition
| guiding the newly synthesized polypeptide chain into the endoplasmic reticulum |
|
|
Term
|
Definition
| a chain of five carbon sugars called ribose that are linked by phosphodiester bonds. |
|
|
Term
|
Definition
the enzyme RNA polymerase
resulting RNA transcript is complementary to the DNA strand |
|
|
Term
| DNA molecule is organized in sets of three called |
|
Definition
|
|
Term
|
Definition
the set of three bases in RNA that are complementary to the DNA triplet
specific for an individual amino acid, or acts as a "stop codon" to terminate the polypeptide |
|
|
Term
|
Definition
|
|
