Flashcards in Ch 7 - DNA & Protein Synthesis Deck (40):
Every cell in ur body has-
Duplicate itself by, cell division or mitosis
Blueprint of ur body is-
Carries info needed for-
-The repair of worn out parts and building of new ones.
Blueprint message carried to different organelles of the cell by..
Approx. base pairs of DNA
3 billion pairs
Unless you are an identical twin, your DNA is
One of a kind
Mutations occur when.....
DNA within a chromosome is altered.
Sickle cell anemia
Hard time carrying o2 but good for fighting malaria
Chromosomes are made up of
protein and nucleic acids
20 different amino acids that
Produce proteins- an almost infinite number of proteins maybe developed
Made up of nucleotides
Nucleotides are made up of...
Phosphates, sugar molecule, and 1 of 4 different nitrogen bases.
Using these 4 different nitrogen bases in different sequences
Code for al the info needed to develop all the protein and amino acid sequences
Watson and crick
-double helix DNA
~>determined by use of x-ray diffraction
4 nitrogen bases
Thymine - T
Guanine - G
Cytosine - C
DNA copy's itself
-during S-phase of interphase
Semi conservative replication
-When original DNA strand splits.
-Nucleotides fill remaining haves of DNA to make 2 identical strands.
The original half is called....
The new ones is called....
All cells have enzymes
(endonucleases) -natural genetic scissors
Bacteria have special endonucleases called
Restriction enzymes -used in the lab genetic scissors
There are over 200 diff restriction enzymes
The Ligase enzyme is....
A type of glue that can repair the damage done to DNA by restriction enzymes
From one species to another (glow in the dark monkey)
Proteins are produced by
-20 diff amino acids
Made up of proteins
The order of DNA bases ultimately determines
The order that amino acids are arranged
The role of DNA in protein synthesis:
All living organisms have A,T,C,G
-proteins are generated from the order of amino acids which is determined by order of DNA bases.
Gean that make you more Likely to get cancer.
Cancer cells- often display nitrogen base substitution
-arise cause of mutations that alter DNA
Genome (gene pool)
All of the genes that occur in a population
Hardy & Weinberg suggest
The gene pool or allel frequency would remain the same for many generations if there were these 5 constants-
This is not hardly possible. So the gene pool will change
The frequency of the do infant allele
He frequency of the recessive allele
Homozygous dominant genotype
Homozygous recessive genotype
How many times an allele "a" shows up in a population)
He amount of times a genotype shows up in a population
Three factors that bring about evolutionary change are:
2) gene flow
3) genetic drift
Randomly occurring events which effect the genetics of an individual or a population
(Migration) - organisms move. Moving their genetics either into or out of a population.