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molecular genetic

QuestionAnswer
is DNA and deoxyribonucleic acid the same thing? Yes
what is DNA? It contains information that helps an organism develop and function.
what is deoxyribonucleic made of? It is made up of nucleotides
what is nucleotides made of? it is made of a 5-carbon sugar (deoxyribose), a nitrogen-containing base (attached to the sugar), and a phosphate group.
where are the segments of DNA located? in the chromosomes
When a gene is expressed what happens? a protein is synthesized and produces a trait
where do the segments of DNA do? they carry information for certain traits witch are called genes
DNA is composed of two polymers, where can they be found? in a helix structure, giving DNA the nickname "the double helix".
What is the backbone of DNA made of? it's made of sugars and phosphate groups, which are bonded together.
how are the polymers linked together? by nitrogen bases, which attach to the sugars.
what do the bases of DNA pair with? They pair with complementary bases on the other polymer in order to link the polymers together.
Name 4 nitrogen bases 1. adenine (A) 2. cytosine (C) 3. guanine (G) 4. thymine (T)
Three bases in a row make up a...? Codon
when all of the codons have been read what happens? the amino acids group together to form proteins.
How many steps are in DNA replication? 3
Whats the first step in DNA replication? The two original strands of DNA separate.
What is the second step in DNA replication? DNA polymerases add complementary nucleotides to each strand. (adenine bonds with thymine; cytosine bonds with guanine)
What is the third step in DNA replication? Two DNA molecules form, which are identical to the original DNA molecule.
How does the process of DNA of replication begin? The process of DNA replication begins with one double-stranded molecule of DNA.
What happens in the DNA replication? The two strands of this molecule separate during replication, and DNA polymerases add complementary nucleotides to each strand.
At the end of DNA replications what are your results? The end results of DNA replication are two identical DNA molecules.
What happens during transcription? initiation elongation termination
what happens in initiation? Enzymes bind to a DNA sequence and unzip the molecule.
what happens in elongation? As the molecule unzips, RNA nucleotides pair to complementary DNA nucleotides on one of the DNA strands.
Created by: yatzeni