AP Biology Unity 6

DNA Replication

• Small fragments of DNA on the lagging strand during DNA replication, joined later by DNA ligase.
• process of copying DNA
• Enzyme that joins individual nucleotides to produce a DNA molecule
• The DNA responsible for bacterial transformation.

Transformation

• A change in genotype and phenotype due to the assimilation of external DNA by a cell.
• The cell provides separate area for transcription.
• Adenine, a purine, and thymine, a pyrimidine, bond with each other because they both have two hydrogen bonds
• - can synthesize a new strand of DNA

Hershey and Chase

• Enzyme that joins individual nucleotides to produce a DNA molecule
• DNA is the genetic material, not protein; blender experiment.
• Adenine, a purine, and thymine, a pyrimidine, bond with each other because they both have two hydrogen bonds
• short nucleic segments at the end of the intros that signal where it will splice.

Transforming Factor

• synthesized continuously
• The DNA responsible for bacterial transformation.
• The strand that is synthesized in fragments using individual sections called Okazaki fragments
• additions of nucleotide pairs in a gene

Rosalind Franklin

• Woman who generated x-ray images of DNA.
• Reading mRNA nucleotides in the correct groupings.
• The strand that is synthesized in fragments using individual sections called Okazaki fragments
• a mutation involving the addition or loss of nucleotides

Watson and Crick

• catalyzes the lengthening of telomeres in germ cells
• a mutation that changes one amino acid
• Developed the double helix model of DNA.
• coding segments of DNA

Melson and Stahl

• Binds to and stabilizes single-stranded DNA until it can be used as a template.
• Supported models of DNA. (Semi conservative replication)
• Adenine and Guanine
• a short stretch of RNA with a free 3' end, bound with DNA nucleotides during DNA replication

Semi Conservative Replication

• Copying process by which a cell duplicates its DNA
• in each new DNA double helix, one strand is from the original molecule, and one strand is new
• contain nuclei
• 1) assembled from snRNPs (snurps) and protein complexes

Why does adenine bond with thymine?

• synthesized continuously
• a short stretch of RNA with a free 3' end, bound with DNA nucleotides during DNA replication
• Adenine, a purine, and thymine, a pyrimidine, bond with each other because they both have two hydrogen bonds
• Replisome (helicase, topoisomerases and DNA polymerase III) directs bidirectional DNA replication from a single origin of replication.

Why does guanine bond with cytosine?

• Guanine, a purine, bonds with cytosine, a pyrimidine, because they both have three hydrogen bonds
• Cytosine and Thymine
• DNA is the genetic material, not protein; blender experiment.
• 2) enzyme that carries out RNA splicing; |