----- IN AN ORGANISMS ARE EXACT REPLICAS

(a)  

------ CAN BE FOUNF IN THE CELLS NUCLEUS

(a)  

----- IS A SEGMENT OF DNA WHICH SPECIFIES THE CHAIN OF AMINO ACIDS THAT COMPRISES THE PROTEIN MOLECULE

(a)  

ALL OF THE GENETIC MATERIAL (THE TOTAL DNA) CONTAINED IN THE CHROMOSOMES OF AN ORGANISM

(a)  

is a theory stating that genetic information flows only in one direction, from DNA, to RNA, to protein, or RNA directly to protein.

(a)  

NUCLEIC ACIDS IS A POLYMER IN WHICH THE REPEATING UNIT IS (a)  

formed from condensation reaction between a five-carbon monosaccharide and a purine or pyrimidine base derivative.

(a)  

for pyrimidine bases – suffix (a)   is used (cytidine, thymidine, uridine)

for purine bases – suffix (a)   is used (adenosine, guanosine)

prefix “ (a)   ” is used to indicate deoxyribose present (e.g: deoxythymidine)

A GROUP THAT IS ADDED TO A NUCLEOSIDE

(a)  

are referred to as nucleic acid backbone ; found in all nucleic acids

(a)  

is a polynucleotide in which each of the monomers contains ribose , a phosphate group, and one of the heterocyclic bases adenine, cytosine, guanine , or uracil

(a)  

is a nucleotide polymer in which each of the monomers contains deoxyribose, a phosphate group, and one of the heterocyclic bases adenine, cytosine , guanine, or thymine .

(a)  

a high mol.wt., double -stranded polynucleotide that occurs almost exclusively in the nucleus of the cell • primary function is storage and transfer of genetic information which is used (indirectly) to control many functions of a living cell

(a)  

the proof of this base -pairing came when Watson and Crick proved by x -ray diffraction that the DNA structure was a double helix whose chains were ____________ AND _________

(a)  

Predict the sequence of bases in the DNA strand complementary to the single DNA strand shown below:

5’ A–A–T–G–C–A–G–C–T 3’

(a)  

The loss of helical structure due to disruption of H –bonds is called (a)   or melting , where the double strands separate into single strands.

extend into the center at right angles to the acids of the helix as if they are the steps of the spiral staircase

(a)  

Process by which DNA molecules produce exact duplicates of themselves

(a)  

First step is the separation of the strands – accomplished by (a)   , which breaks the H -bonds between base pairs

positive supercoiling results when H -bonds are broken, this is relieved by

(a)  

when supercoiling is relieved, (a)   binds to the separated strands to keep them apart

catalyzes synthesis of a 10 -12 base piece of RNA to “prime” the DNA replication

(a)  

“reads” the parental strand or template, catalyzing the polymerization of a complementary daughter strand; the enzyme checks the correct base pairing and catalyzes the formation of phosphodiester linkages

(a)