Semi conservative mechanism produces two copies of the original DNA molecule. Each molecule consists of one of the strands of the original DNA molecule and a new strand.
Humans have 46. Different species have a different number. 23 from each parent. 2% of DNA is coding. 98% is non coding.
Amino Acids. Have sequences of amino acids which determines the shape which determines the size
What chromosomes are made of. Also consists of DNA RNA and protein.
An enzyme that reads the sequence of DNA strands and helps to add complementary nucleotides to form a new strand during DNA replication
DNA replication is said to be this because each newly made DNA molecule has one original and one new strand
One complete set of genetic instructions encoded in the DNA of an organism
Sections of a chromosome in which DNA sequence is repeated
A section of DNA that contains a nucleotide sequence with the instructions to make at least one protein. 21,000 to build a human
Alternate versions of genes. Many are harmless. One from each parent.
Two parts: regulartory sequence and coding sequence
Determine when and how much protein a gene makes
Determines the amino acid sequence of the encoded protein
Molecules of mRNA are generated by enzymes called mRNA polymerase. Copies the sequence found on DNA
mRNA molecules used to assemble the corresponding amino acids sequence of the protein. Occurs on a ribosome and uses the mRNA sequence to assemble the appropriate amino acid sequence of the protein
Salt, magnesium, DNA polymerase, sample DNA and nucleotides primers
The building blocks of DNA
The spiral structure formed by two atranda of DNA nucleotides bound together
A visual representation of a persons unique DNA sequence
Fitting together two strands of DNA
Allows DNA replication to occur many times
Deficiencies in this lead to increased risk for blood clots
A lab technique that separates fragments of DNA by size
Short segments of DNA that guide DNA polymerase to the section of DNA to copy

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Chapter 12 Vocab










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