Biology question and answers for November 17, 2023
- Q Which of the following types of mutation could potentially create extra idling copier of existing genes which could become new genes Choose all that applies O retroposition O unequal crossing...
- Q Chemically how does RNA differ from DNA List three ways 12pt Paragraph BIUA
- Q 14 2 points In domestic cats some genes that control coat color are located on the X chromosome and are inherited in a sex linked manner Black fur is dominant...
- Q 13 2 points Assume that hair shape in domestic dogs is a single gene autosomal trait with two alleles where having straight hair is dominant H and having curly hair...
- Q 9 2 points In order for transcription to be initiated a number of different proteins must be present and interacting with the DNA molecule In addition to RNA polymerase which...
- Q 5 2 points A portion of a DNA molecule has the sequence 5 CTGAA 3 Which nitrogenous bases and in what order do you expect to be on the complementary...
- Q 1 2 points Which of the following correctly describes a piece of biological information A The sequence of amino acids in a polypeptide B The functional groups present on a...
- Q 5 The DNA sequence shown below codes for a four amino acid polypeptide A box has been drawn around the start codon to indicate the beginning of an open reading...
- Q 6 In pedigree shown below individuals that are affected by a particular genetic trait are shown as colored shapes while unaffected individuals are shown as open shapes It is assumed...
- Q 3 If an individual is heterozygous Aa then a they possess two different alleles of the same gene b they possess two different alleles of different genes c they possess...
- Q 9 Highly repetitive elements in eukaryotic genomes can be detected by A the short time required for their renaturation in reassociation kinetic analy B confirming the dispersive model for DNA...
- Q 3 H Gobind Khorana described a synthetic RNA copolymer poly UC which encodes A poly U B poly Phe C alternating copolymer LeuSer D nonsense mediated decay E translation initiation
- Q E decoding 5 Tropomyosin isoforms are mainly produced by A exon skipping B DNA rearrangement C retrotransposition D site specific mutagenesis E decoding errors and ribosomal frameshifting and the core...
- Q 5 The nucleotide excision repair system can undo damaging caused by UV radiation A alternative splicing errors B T T dimers C apurinic sites D protein protein cross links E...
- Q 4 The factors most involved in transcription initiation are A N fMet tRNAMc mRNA B TBP and TFIIB C EF Tu EF G D IF1 IF2 IF3 E RF RRF
- Q Spot size in lady bugs is controlled by one gene In a certain population there are two alleles of this gene the wild type allele and mutant allele You breed...
- Q 101 In the illustration above a parent cell is going through cell division Black lines represent nucleic acids and blue dots represent kinetochore complexes These nucleic acids are aligned on...
- Q In the image below a plasmid has been cut with restriction enzymes and a new gene is being inserted Gene O S Plasmid The enzyme Recombinant DNA is used to...
- Q n the technique of Southern or RNA Northern nucleic acids that have been separated by gel electrophoresis are transfered to a nylon membrane This process can be used with DNA
- Q cell is always to undergo abnormal division and create a tumor False O True Question 97 Following DNA replication each new DNA molecule consists of one old strand and one...
- Q 5 730 7 530 O530 3 570 Question 81 In the experiment by Hershey and Chase in which radio labeled nucleic acids and proteins were applied to bacteriophages bacteria viruses...
- Q Match the parts of the lac operon to their correct names Part a Part b Part C Part d Part e Part f Part g Part h Parti locz locy...
- Q When chromatin undergoes its nucleosomes pack tightly together and transcription cannot occur
- Q Match the transcription machinery to its function TATA box promoter Introns exons terminator transcription factors RNA polymerase A a DNA sequence that the RNA pol can recognize and bind to...
- Q is the production of RNA using DNA as a template is the synthesis of polypeptides at the ribosom
- Q Identify the parts of DNA replication k Part k Part 1 Part m Part n Part o Bortin 1 m n P q r S t u A DNA polymerase...
- Q Identify the following parts of the DNA molecule a 5 end OH 3 end Part a Part b Part c Part d OH i h b C g OH 3...
- Q The chart below shows the inheritance of human eye color AABB AABD A00 Aso Asto AABO AADO Andy Aabo eggs Aato Ada Aalo 6100 2050 Aalb Auto aa8o 8100 deep...
- Q 4 What should be the social and ethical responsibilitie of the individual scientists involved in research with genome editing technology How can they best fulfill those responsibilities
- Q Use the genetic code table and the information in the diagram below to determine the amino acids that would make up the portion of the polypeptide shown. Include information for...
- Q To make DNA, this enzyme must first make a short strand of RNA on the template.topoisomerasehelicaseprimaseexonuclease
- Q What is an appropriate definition of the evolutionary rate?The rate at which novel mutations arise (per site or per genome) when genomesreplicate.The estimated rate at which novel genes arise.The estimated...
- Q The DNA strand that is replicated in discontinuous segments is known as the strand.Okazakileadinglagging3' -> 5'5' -> 3'
- Q A person without the allele for sickle cell anemia has children with a person who is a carrier for sickle cell anemia but doesn't have the disease. What percentage of...
- Q What is the minimal number of tRNAS that can be used to recognize all the codons for leucine & argine ?
- Q RrYyCc x RrYyCc (R = round, r = wrinkled; Y = yellow, y = green; C = smooth, c = constricted)Considering the P1 above, what is the probability of a...
- Q In the human genes for B-globin, a locus control region is characterized byregulating the expression of the B-globin gene.containing several DNAse I hypersensitive sites.being about 15 kb in length.acting upstream...
- Q How many promoters are in a bacterial operon?123It depends on how many genes are present in the operon
- Q Alternative splicing producesA. mRNAs of different lengths from the same pre-mRNAB. genes of different lengths from the same DNAC. mRNAs of different lengths from the same amino acid sequencesD. pre-mRNAs...
- Q The code for a given amino acid consists of_______ bases(s)A. fourB. twoC. oneD. three
- Q Discussion Board Topic: This are the questions you need to answer: In mammals, males often have greater variance in reproductive success than females, as a result of sexual selection. How...
- Q The trp operon codes for genes involved in the synthesis of the amino acid tryptophan. Under what condition would the expression of these genes be the lowest?E. coli growing in...
- Q You are trying to identify new genes. Based on your understanding of transcription and translation, which of the following codons in the genomic DNA could be the beginning to a...
- Q Once the DNA polymerase reaches the end of a linear chromosome, there is no additional primer to extend the lagging strand, resulting in a shortening of the chromosome without the...
- Q During DNA replication, RNA primers _______. (Choose all that apply.)are maintained in the finished chromosomegive DNA polymerase a double-stranded section to which to add nucleotidesmust be removed and replaced by...
- Q In an elegant set of experiments, Hershey and Chase used radioactively labelled bacteriophages (viruses that infect bacteria) containing 32p and 35S to demonstrate that the genetic material is indeed DNA...
- Q When trying to understand how nucleotides would code for amino acids, why did researchers predict that each "word" in the genetic code would contain three bases, what we refer to...
- Q Imagine you work in a research lab that develops a drug that binds to the sigma factor, preventing it from its normal function. What impact would this drug have on...
- Q You decide to use PCR to determine if a patient has HIV (Human Immunodeficiency Virus). Since people living with HIV are more likely than others to become sick with tuberculosis,...
- Q The purpose of PCR is...analyze the length of DNA fragmentscut DNAconvert DNA into RNAcopy short segments of DNAmake billions of copies of the whole molecule of DNA
- Q A cell experiences a mutation in its gene coding for helicase. This cell would most directly be unable tocut and rejoin DNA in order to relieve tensionseparate the strands of...
- Q Imagine a cell experiences an insertional mutation involving the addition of one or more nucleotides into the sequence of a gene in its chromosome. Which of the following insertional mutations...
- Q What codons can you have after fixing Adenine in the first place and Cytosine and Uracil in the second place?
- Q Put the following steps of making a protein in order from beginning to end.= DNA is transcribed into mRNA=mRNA travels from the nucleus to the cytoplasm= mRNA is bound with...
- Q DNA from a newly discovered virus was purified, and UV light absorption was followed as the molecule was slowly heated. The absorbance increase at the melting temperature was only 10%....
- Q What binds to a stop codon to end translation?Nothing binds to stop codons.A tRNA that is specific for that stop codon sequence.The last amino acid in the protein.A release factor...
- Q What is the amino acid sequence of the protein coded from the following mRNA molecule?GLU-ASN-PHE-PROLEU-LEU-LYS-GLYLEU-PHE-PHE-LEULEU-LEU-ASN-GLYCUUUUAAAGGGG
- Q The process of making DNA is referred to as _____ Coding DNA into RNA is ----- while RNA being coded to proteins is ______::TranslationDNA synthesistranscription
- Q genes control the development and differentiation of body segments, and the genes/elements which are near them in an animal genome have a distinct role in tbody segments.LactoseHox (Homeobox)FOXP2Pseudogenes
- Q The wildtype DNA has the following sequence:ACGATTACGAAIt has undergone mutation and it now has the sequence (mutation is underlined):ACGACGCACGAAanswer questions a-e below in the textbox under this question (1 pt...
- Q The point of the Deleterious Mutation Hypothesis was that individuals which have a genotype will be removed from the reproducing population via sex (if the recessive mutation is deleterious) and...
- Q The deposition of Eumelanin in human skin (and thus the light dark variation of human skin) generally trends to provide greater pigmentation closer to the equator (where there is more...
- Q In bacteria (prokaryotic cells), the coding region/reading frame portion of the gene...serves as the template for making mRNA (ie-bases in this region are read by RNA polymerase to make mRNA)contains...
- Q true or false. transcription is the FIRST stage of gene expression; it involves DNA polymerase reading the gene to make mRNA falsetrue
- Q the DNA of a virus inserts into the reading frame (coding region) of a gene in the host cell. This is most likely toresult in ____________ mutation, which is likely...
- Q genetic information...does NOT specify/determine observable characteristics of the cellis found in the backbone of DNAis found in the base sequence of the DNAis information which the organism does NOT need...
- Q an mRNA molecule has the sequence 5'UCA AUG UGC CAC3. Which of the following best describes the tRNA that binds to the second/2nd codon of this mRNA?Has the anticodon UAC...
- Q Visible traits are produced:only when mutation occurswhen the cell's proteins are NOT functioning/doing their jobsas a result of replicationduring the repair of DNA damageas a result of expression
- Q the nucleic acid of the bacteriophage is replicated by:Host cell DNA polymerasehost cell RNA polymeraseNA (neuroaminidase)Viral RNA polymeraseReverse transcriptase
- Q Which of the following does NOT apply to (or describe) the structure of RNA?the sugar of one nucleotide is joined to the phosphate of another nucleotide to make a RNA...
- Q you introduced mutations into bacteria. However, the bacteria have the same characteristics as before (i.e., the characteristics of the bacteria did not change). What kind of mutations do the bacteria...
- Q DNA replication is "semi-conservative" this means...in replication, the newly made strand is half DNA and half RNAthe cell only copies or replicates half of the total number of DNA molecules...
- Q You can thank hydrogen bonding for holding together your DNA!TrueFalse
- Q The origin is the site on the DNA:that marks the beginning of a genewhere RNA polymerase binds to DNA (gene)- i.e., it is the binding site for RNA polymerasewhere transcrption...
- Q which of the following causes transcription to end?ribosome reads a STOP codonRNA polymerase binds to the promoterRNA polymerase leaves promoter and goes into the reading frameRNA polymerase reaches the terminatorribosome...
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