Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Nucleic Acid set 4
Nucleic Acid Module set 4
| Question | Answer |
|---|---|
| Maturation of pre-RNA molecules is | RNA processing |
| RNA processing occurs in the | nucleus |
| Cap (7-methylguanosine) and tail (poly A 150-250 adenylated) are added in | RNA processing |
| Introns(intervening nucleotudes) spliced out by splicesome- (snRNPs-short nucleotide ribonucleoprotein complex) and exons (expressed nucleotides) come together in | RNA processing |
| The Finished product of RNA processing is a mature RNA molecule that leaves the nucleus to the | cytoplasm |
| Carries the message for a specific protein,Made up of 500 to 1000 nucleotides long,Made up of codons (sequence of three bases:AUG - methionine),Each codon, is specific for an amino acid | mRNA |
| Made up of rRNA is 100 to 3000 nucleotides long,Important structural component of a ribosome,Associates with proteins to form ribosomes | rRNA |
| With proteins, forms complexes that are used in RNA processing in eukaryotes (Not found in prokaryotes) | small nuclear RNA |
| Function as post-transcriptional regulators that bind to mRNA, silencing it | micro RNA |
| Like miRNA interferes with gene expression by binding to the mRNA transcripts, facilitating their degradation | small interfering RNA |
| mRNA used to make polypeptide chain (protein) in | translation |
| Made up of 75 to 80 nucleotides long and Picks up the appropriate amino acid floating in the cytoplasm (amino acid activating enzyme | tRNA |
| Transports amino acids to the mRNA, Have anticodons that are complementary to mRNA codons, Recognizes the appropriate codons on the mRNA and bonds to them with H-bonds | tRNA |
| Are the three parts of translation | initiation, elongation, and termination |
| Creation of genetic variation | Gene Transfer |
| How does bacteria produce genetic diversity? | Genetic exchanges and Mutations |
| Three methods of genetic exchange in bacteria are | Transformation, Conjugation, and Transduction |
| In transformation,Bacteria can pick up and incorporate DNA left behind by cells that have _____ (can be from the same or different species) | died |
| Results in new genes being acquired;Example: Can result in acquisition of antibiotic resistance genes | transformation |
| Extensively used in the lab for recombinant DNA technology | transformation |
| is a process in which DNA is transferred from bacterial donor, F+ cell to a recipient, F- cell by direct contact | conjugation |
| The transfer is mediated by a tube-like structure called a ____, formed between the cells, through which the plasmid DNA passes | pilus |
| Once in contact, conjugation, DNA transfer is ______. The lagging strand template peels away… and is transferred to the recipient | unidirectional |
| The ______ template is replicated in the donor while the lagging strand template is replicated in the recipient… so that both cells wind up with the plasmid | leading strand |
| Cells with the F plasmid integrated into the bacterial chromosome are known as | high frequency recombination cells |
| When an Hfr cell undergoes conjugation, the process of transfer of the _____ is initiated in the same manner as in an F+ cell | F factor |
| However, because the F factor is part of the bacterial chromosome, transfer from an Hfr cell also includes DNA from the | chromosome |
| Transfer of genetic material between bacteria cells via virus | transduction |
| Bacterial chromosome degraded by | viral enzymes |
| Pieces of bacterial DNA may be mistakenly packaged in a new virus instead of | viral DNA |
Created by:
kprout
Popular Biology sets