Show:
RNA
Translation and Transcription
Ribosomes and Proteins
Mutations
Gene Regulations and Expression
100
What is RNA?
What is Ribonucleic Acid
100
What is transcription?
What is enzyme RNA polymerase uses one strand of DNA as a template to assemble complementary nucleotides into a strand of RNA.
100
What is the genetic code, and how is it read?
What is read three "letters" at a time, so that each "word" is three bases long and corresponds to a single amino acid.
100
what are mutations?
What is heritable changes in genetic information.
100
How are prokaryotic genes regulated?
What is DNA- binding proteins in prokaryotes regulate genes by controlling transcription.
200
How does RNA differ from DNA?
What is ribose instead of deoxyribose, single stranded and not double-stranded, uracil in place of thymine.
200
How does transcription be used into RNA and DNA?
What is when RNA polymerase binds to DNA and separates the DNA strand.
200
what rule does ribosomes play in assembling proteins?
What is ribosomes use the sequence of codons in mRNA to assemble amino acids into polypeptide chains.
200
what is point mutations?
What is gene mutation that involve changes in 1 or few nucleotides.
200
Why must E. coli be able to switch the lac genes on and off?
Lactose is a compound made up of two simple sugars, galactose, and glucose.
300
How does the cell make RNA?
What is in transcription segments of DNA serve as templates to produce complementary RNA molecules.
300
What are the three steps of Translation?
What is 1) Transfer RNA 2) The Polypeptide "Assembly Line" 3) Completing the Polypeptide
300
what step is ribosomes used in?
What is translation
300
what are the 4 chemical mutations?
What is deletion, duplication, inversion, translocation
300
How are genes regulated in eukayotic cells?
By binding Dna sequences in the regulatory regions of eukayotic genes, transcription factors control the expression of those genes.
400
What are the three functions of RNA?
What is Messenger RNA, Ribosomal RNA, Transfer RNA.
400
Where is Translation located?
What is the cell's cytoplasm
400
how many proteins are in ribsomes?
What is roughly 80
400
how do mutations effect genes?
What is some have little or no effect;and some produce beneficial variations.
500
Where are introns and exons located?
What is Eukaryotes.
500
What happens during Translation
What is the cell uses information for messenger RNA to produce proteins.
500
in ribosomes how many different rRNA molecules and how do they help the ribosome?
What is 3 or 4 different rRNA molecules that hold ribosomal proteins in place and help locate the beginning of the mRNA message.
500
What are the beneficial effects?
What is often produce proteins with new or altered functions that can be useful to organisms in different or changing environments.