Card Set Information
Flashcards for ASU Professor Mossman's Biology 181 final
In what phase does DNA repair processes occur?
What are the base pair "rules"?
When phase do sister chromatids begin to arise?
When do sister chromatids segregate?
T/F sister chromatids contain identical versions of the same genetic information in mitotic division
When do sister chromatids join?
during prophase and mataphase
Osmosis is a specific form of_______
T/F daughter cells are genetically identical to parent cells.
What is the information flow in Biology?
DNA to RNA to Protein
What form as a result of accidental nondisjunctions?
Trisomies and momosomies
What is deoxyribose composed of?
Deoxyribose, nitrogenous bases, and a phosphate
What is osmosis?
diffusion of water across a membrane
What is transcription?
synthesizing an RNA molecule using DNA as a template
What is involved in semiconservative replication?
each of the origional strands act as a template for new strands
what is facilitated diffusion?
using a carrier protein/transmembrane protein to cross a membrane
What does RNA polymerase do?
directs mRNA synthesis by transcription of DNA message
If the gentic code was based on 2 nitrogenous bases per codon, what would the maximum number of amino acids be?
What is determined by independent assortment?
tbe proportion of genetic material in a gamete inherited from a parent.
Sickle-cell anemia is caused by a _____mutation
When placed in a hypertonic solution, what will happen to animal cells?
They will shrink
What requires the action of DNA polymerase?
synthesis of a complimentary strand of DNA
What does DNA do?
Transfers information form one generation to another in eukaryotes.
What are centromeres?
The connect chromatids.
What link adjacent epithellial cells that ine the lumen of body cavities such as the small intestine?
What is the process for bringing large particles into a cell?
When does DNA replication occur?
During S phase
What is an example of post-transcriptional modification of mRNA?
adding a poly A tail to the 3' end
What are characteristics of XP?
Deffective DNA repair and sensitivity to solar light.
What removes a DNA sequence furing excicion repair?
What transport goes from low concentration to high concentrations?
T/F DNA segments are encoded on the template strand that are identical to the mesage encoded on the complementary strand.
What does DNA wrap around within the neucleosome?
Where does translation occur?
Where does transcription occur?
Frameshift mutations are a result of______
T/F Phosphorlaion of a structure alers its three dimentional structure
During prokaryotic division, how di two chromosomes sperate?
attachment to sperate regions of the cell membrane
CDK catalyzes the phosphorlation if targeted protiens which_________
changes the shape and function of targeted cells.
How many neucleotides does a codon have?
T/F Codons can code for multipe amino acids
What is found in DNA?
C, O, N, H
T/F a single gene can be transcribed by several RNA polymerases at once.
What is a reason for redundancy in genetic code?
what is exocytosis?
When materials are packages and released into the ECF
What phase does crossing over occur in?
What reads DNA stands?
T/F the stop codon codes for an amino acid
What causes genetic variances in haploid cells?
The presence of a _______sequence determines the DNA template used to synthesize a protein.