Alternative splicing - Samenvattingen, Aantekeningen en Examens

alternative splicing - - Splicing of introns in a pre-mRNA that occurs in different ways - leads to different mRNAs that code for different proteins - Increases the diversity of proteins. dna transcription vs replication - - replication synthesizes new (daughter) DNA - transcription of DNA forms RNA does the structure of the DNA (nucleosomes) impact the ability of the RNA polymerase to transcribe genes? - - yes - tightly bound nucleosomes, it's harder to get to the DNA so there is less e...

BS 161 FINAL EXAM, BS 161 FINAL EXAM, BS161 PCQ & RIQ Tested Questions With Revised Correct Answers <Updated < Already Passed > Which argument best defends a characteristic of the solute seen on the right? - Answer -The solute is hydrophobic because there are is no observable evidence of electrostatic interactions between the partially charged atoms of the water molecule and the solute What best describes a lipid? - Answer -a molecule that does not dissolve well in water The fl...

RNA polymerase - ANSWER pries the two strands of DNA apart and joins the RNA nucleotides as they base-pair along the DNA templates promoter - ANSWER DNA sequence where RNA polymerase attaches and initiates transcription Synthesis of RNA transcript - ANSWER initiation; elongation; termination synthesis of RNA transcript initiation - ANSWER after RNA polymerase binds to the promoter, the DNA strands unwind, and the polymerase initiates RNA synthesis at the start point of the template stra...

inversely correlated correct answers two variables that move in opposite directions. If one increases the other decreases; and if one decreases the other increases. A man with a CRC mutation that results in the synthesis of HSP110ΔE9 and a woman that does not carry this mutation in any of her tissues have a child. What is the percent chance that the child will inherit the CRC mutation? A.0% B.25% C.50% D.100% correct answers The answer to this question is A. According to the passage, H...

which of the following components of an amino acid differs from one amino acid to another - Answerthe R group Sometimes atoms gain or lose particles. The loss of which of the following would result in a change of overall electrical charge? - Answer-protons or electrons what is the cell theory - Answer-1. theof cells A pair of shared valence electrons is referred to as a(n) - Answer-covalent bond scientists wanted to track the movement of specific organic molecules in a cell by using radioac...

bs161 final Exam Practice Questions and Answers In messenger RNA, the protein-coding sequence is present in: Question options: exons. introns. exons and the poly(A) sequence. introns and the poly(A) sequence. - Correct Answer️️ -exons. Which process produces multiple proteins from the same primary transcript in the same cell? Question options: chromatin remodeling histone modification alternative splicing combinatorial control - Correct Answer️️ -alternative splicing Altern...

MMSC 490 Exam 2 Questions and Answers All Correct The genomes of salamanders contain ten times more DNA than the genomes of humans because salamanders - Answer-have more noncoding DNA than humans have. A gene can be defined as a segment of DNA that codes for - Answer-functional product. Introns in mRNA-coding genes are the transcribed sequences - Answer-between protein-coding sequences. In the nucleus, introns are removed from transcripts by - Answer-splicing introns can encode - A...

main features of the genetic code - Answer-61 codons for 20 amino acids three codons do not code for any amino acids each codon codes for only one amino acid (unambiguous and specific) some amino acids are coded for by more than one codon (degenerate) use a codon table - Answer-practice steps of transcription - Answer-initiation elongation termination initiation - Answer-rna polymerase binds to the promoter eukaryotes require - Answer-transcription factor proteins elongation - Answer-R...

Transcription - Answer helix unzips by DNA polymerase Strands separate, acts as template Free RNA nucleotides attach to completmentary base Phosphate bonds form Pre-MRNA detaches Splicing=removes introns-non coding Translation - Answer Ribosome attaches to start condon TRNA with complementary anticodon pairs with mRNA tRNA releases amino acid forming a peptide bond then tRNA is released back to cytoplasm Peptide chain formed, release into the cell DNA, Chromosomes and Genes - ...

What is the first mRNA processing step? - ANSWER 5' capping Different mRNAs are made from the same initial pre-mRNA by ________. - ANSWER alternative splicing RNA transcription begins at a ________. - ANSWER promoter ________ protect(s) the pre-mRNA molecule. - ANSWER the 3' poly-a tail The process of pre-mRNA splicing removes ________. - ANSWER introns Spliced ________ differ in their exons. - ANSWER mRNAs Identify the three phases of transcription. - ANSWER initiation, elongation, te...