Why was the cold ethanol added to the soap and salt mixture?

Q: Bacterial DNA has how many origins of replication? A) 0 B) 1 C) 10 D) depends on the size of…

A: Two identical copies of a DNA molecule are produced by DNA replication. This is important for cell…

Q: Write the reaction that proves that UV attacks DNA.

A: DNA is made of two complementary strands intertwined into a double helix. The hereditary message is…

Q: The base sequence on one strand of DNA is ATGTCTATA(i) Give the base sequence of its complementary…

A: The deoxyribonucleic acid is the genetic material that is passed from one generation to another…

Q: Chargaff's rule applies to: Group of answer choices A. only RNA B. both DNA and RNA C. only DNA…

A: INTRODUCTION chargaff's rule This rule state that the purine and pyrimidine bases of DNA of any…

Q: Which statement is TRUE regarding the DNA ligase mechanism? A)the last step of the reaction proceeds…

A: DNA ligase is a type of enzyme that catalyses the formation of a phosphodiester bond between DNA…

Q: a. How do you set up the tanks? b. Why do DNA fragments move? C. How do DNA fragments move relative…

A: There are multiple questions in this particular question, I will answer the first three sub parts…

Q: A) What is the difference between a nucleoside and a nucleotide? B) Give any two differences between…

A: DNA as well as RNA are two crucial building blocks of life. The human cells also comprises of RNA…

Q: Describe what happens to the DNA when the helicase unwinds the double helix. What can Topoisomerases…

A: it occurs during DNA replication.

Q: Transcription copies a _____ to a complementary _____ molecule. a. chromosome; DNA c. gene; RNA b.…

A: The gene is a basic physical and functional unit of heredity. Genes are made up of DNA.The gene is a…

Q: Which choice correctly shows the relative amounts of non-coding DNA? A. A human has a greater…

A: DNA is made up of coding and non coding sequences.9

Q: Consider how histone proteins bind to DNA and then explain why a salt solution with a high…

A: DNA is deoxyribonucleic acid and is composed of two chains of the polynucleotide. These coil around…

Q: What would be the sequence that the RNA polymerase synthese from the follwing DNA sequence? 5'…

A: Transcription: The process of formation of RNA from the DNA by  action of DNA dependant RNA…

Q: Using the DNA strand shown here as a template, what will be the sequence of the RNA transcript? 5'…

A: A template is the strand that attach to the complementary strand via DNA polymerase and RNA…

Q: 1.2 A colony of bacterial cells is exposed to UV-light. 1.2.1 What mutation will probably result…

A: MUTATION FROM UV LIGHT EXPOSURE Ultraviolet light induces specific mutations in the cellular and…

Q: Why is it important for DNA to be copied before a cell undergoes mitosis

A: Answer: MITOSIS = It is the process of producing two identical daughter cells from the parent cell…

Q: During transformation a cell usually incorporates only one or afew fragments of DNA. Explain.

A: The prokaryotic organisms including the bacteria are single cell organisms. The genetic material…

Q: Although human DNA has a total length of 2 m, it is packaged into a nucleus that is 5 µm in…

A: Cells wrap their DNA strands around scaffolding proteins to form chromatin, a coiled compact…

Q: Match the substance to it's function. B. v Prevents supercoiling/Overwinding of the DNA A.…

A: Nucleosomes are the basic packing unit of DNA built from histone proteins around which DNA is…

Q: Cytochrome C Study A scientist wants to study the cytochrome c gene of a fruit fly. The DNA for the…

A: Restriction enzyme cleaves DNA at specific sites along the molecule The DNA After specific…

Q: Which enzyme is used in Sanger sequencing reactions? O A. DNA polymerase O B. S1 endonuclease O C.…

A: Introduction :- Sanger DNA sequencing is commonly employed in research to target smaller genomic…

Q: Explain why the image below could not be from a eukaryote. What characteristics of the image would…

A: Eukaryotes are organisms that has nucleus and organelles within the cell. Nucleus is enclosed in the…

Q: Bacteriophages are viruses that infect bacteria. Depending on the bacteriophage, their genome can be…

A:

Q: Shown is a representation of a DNA molecule being transcribed.(a) Identify every 3′ end and every 5′…

A: Transcription is the process in which the codes in DNA are transcribed to mRNA. This helps to…

Q: Propose an experiment that would test the importance of ionic strength in the determination of DNA…

A: The DNA melting point is the temperature at which DNA helices are denatured and it is referred to as…

Q: Eukaryotes such as humans have linear chromosomes. In order to signal the end of DNA replication,…

A: DNA replication is a process by which two identical copies of DNA are made. It is completed in 3…

Q: The replication of chromosomes by eukaryotes occurs in a relatively short period of time because ?…

A: The DNA replication is the production of new DNA from the old DNA by the semiconservative manner. In…

Q: What did the Miller-Urey experiment demonstrate? A. Life originated in outer space and was brought…

A: Miller was a graduate student at the time of the experiment, who was working under the direction of…

Q: fAvery, MacLeod, and McCarty had determined that the transforming molecule was RNA, what…

A: In the history of DNA it is found that biologists were trying to identify the genetic material and…

Q: a. As a result of the structure of DNA and RNA, replication, transcription and translation are…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: E. coli would be a good model organism for which of the following processes?   a)  DNA replication…

A: Many biological processes need a model organism to study them. As such process stand true for all…

Q: Explain why the term " junk dna" may not be such an accurate description? (b) provide 1 similarity…

A: DNA is made up of introns and exons. Introns are the sequences that do not code for any  functional…

Q: Explain semi-conservative modelmof DNA replication b) discuss initiation in DNA replication and…

A: DNA replication is the process in which the copies of DNA is made by the action of several enzymes…

Q: Two experimental tubes contain an equal number of nucleic acid molecules with the sequence 5’ AGCAGG…

A: Answer: Introduction: DNA- Deoxyribonucleic acid and RNA- Ribonucleic acid are present in nucleus of…

Q: A scientist wants to study the cytochrome c gene of a fruit fly. The DNA for the gene is extracted…

A: Restriction enzymes are molecular scissors that are used in Recombinatinant DNA technology.  It is…

Q: Which feature do you expect to find at an origin of replication? a) an ATG codon b) A GC-rich…

A: DNA replication is the process by which new DNA molecules are produced from the old DNA molecules by…

Q: In eukaryotes, why is less DNA transcribed the more it is compacted

A: Transcription is the molecular process in which the genomic sequences of DNA are transcribed into…

Q: Why do normal adult animal cells NOT express the telomerase enzyme? A) evolutionary accident…

A: Enzymes assist in various biochemical processes taking place in the body. It is studied under the…

Q: Use the diagram to answer the following three questions. 5' TTAGGGITAGGGTTAG 3' || CAAUCCCAAUC…

A: (a) Write next six bases that would be added by telomerase using the format  5'NNNNNN3'…

Q: Here is the nucleotide sequence of an imaginary strand of DNA: 5’ AATTGGCCATGC 3’. If this strand of…

A: DNA (deoxyribonucleic acid) was discovered by Friedrich Miescher. Nucleotides are the structural…

Q: 25.) The area indicated by the arrow is the A) sugar-phosphate backbone B) minor groove C) major…

A: Deoxy ribonucleic acid (DNA) is the genetic material that contains genetic material in the form of…

Q: when a cell to divide, its DNA must be replicated (copied).   a.List the most important…

A: DNA is a polymer of nucleotides that serves as the basis of hereditary. All living organisms (except…

Q: If a prokaryotic cell experienced a mutation that eliminated DNA polymerase's 3' to 5' exonuclease…

A: DNA replication is a process in which DNA is synthesized in a semi-conservative manner. The enzyme…

Q: A mutant DNA strand was transcribed then translated to proteins. a. What is the protein product of…

A: A mutation is an abnormal change in DNA sequences that alters the protein product and is one of the…

Q: If Avery, MacLeod, and McCarty had found that samples of heat-killed bacteria treated with RNase and…

A: Avery, MacLeod, and McCarty used heat in their experiment to virulent bacteria, then homogenize and…

Q: In DNA replication, which daughter strand is more likely to have a mutation? Select one: O a.…

A: DNA replication occurs differently in two different strand of DNA. The replication process in…

Q: Given the banding pattern from the gel electrophoresis below, the nucleotide sequence of this…

A: Gel-electrophoresis:- it is used to separate the fragments of DNA, RNA, as well as proteins on the…

Q: Given the banding pattern from the gel electrophoresis below, the nucleotide sequence of this…

A: Electrophoresis separates the DNA strands based on their size. Thus, the smaller fragments sieve…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.