Which of the following experimental results was NOT evidence that DNA is the genetic molecule rather than proteins?   a. When a virus was radioactively labelled, and the virus was allowed to infect a bacteria cell, radioactive virus DNA was found inside the bacteria cell while radioactive virus proteins were found outside the cell.   b. Dead pathogenic bacteria cells combined with living nonpathogenic bacteria cells caused the creation of living pathogenic cells and thus the death of the host animal.   c. Proteins are a class of macromolecules with the diversity and specificity needed for hereditary material.   d. Nucleotide bases occur regularly, such that the number of adenines = number of thymines, and the number of guanines = number of cytosines.

Q: Which of the following do you think would be true of the sites of the origin of replication (where…

A: The replication of DNA is the creation of two molecules of DNA from one parent molecules, in which…

Q: GENETICS The modified "dye terminator method for DNA sequencing represented a major improvement…

A: Answer is f.) all of the above.

Q: Which of the following is not one of the ways that Avery’s transforming principle resembles DNA?a.…

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. The gene consists of DNA…

Q: Which of the following inspired Avery and his colleagues to perform the experiments demonstrating…

A: Avery, MacLeod and McCarty identified DNA as the "transforming principle" while studying…

Q: Which of the following would be most likely to cause a mutation? A. the addition of nucleotides to…

A: DNA( deoxyribonucleic acid) is the double-stranded molecule that is the genetic material in most…

Q: Avery, MacLeod, and McCarty demonstrated that the transforming principle can be destroyed by DNase.…

A: Introduction: DNA stands for 'deoxyribonucleic acid' and it is the hereditary material in humans and…

Q: A person cannot see a single cotton thread 100 feet away, but if you wound thousands of threads…

A: DNA extraction and polymerase chain reaction are two basic molecular laboratory methods (PCR). This…

Q: Figure 1 Figure 2

A: DNA is known as the deoxyribonucleic acid. DNA has the chromosome which carries the genes and these…

Q: DNA fragments that are 500 bp, 1000 bp, and 2000 bp in length are separated by gel electrophoresis.…

A: Deoxy ribonucleic acid (DNA) is the genetic material of most organisms that carry coded genetic…

Q: True or false: Bacteria such as the one shown below can have a genome that is either made of RNA or…

A: Bacteria are microscopic organism which are present in several locations and can cause disease.…

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

A: DNA - is Deoxy Ribo Nucleic acid is a hereditary material which contains all the genetic information…

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: (a) Why can there be multiple codons for an amino acid? Why would this have evolved? (b) What is…

A: The genetic code comprises the set of rules that tells how the four nucleotide bases in the DNA are…

Q: Before the B-DNA was proposed by Watson and Crick, Pauling and Corey suggested a triple-stranded DNA…

A: Introduction Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil…

Q: h of the following is NOT true of cutting DNA in biotechnology? A molecular biologist can cut DNA…

A: Biotechnology is a technique in which DNA is manipulated either by cutting the the and required gene…

Q: The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the…

A: Answer: Introduction:The Hershey–Chase experiments were a conducted experiment in 1952 by Alfred…

Q: What were the two major goals of the Human Genome Project? Select all that apply.   a to isolate…

A: Introduction :- The Human Genome Project was an international scientific research project aimed at…

Q: injected mice with non-pathogenetic bacteria that had been incubated in the remains of pathogenic…

A: Ans:   In this case there was no transformation

Q: What is DNA polymerase? a.An enzyme that carries out DNA replication b.Short, single strand of…

A: Deoxyribonucleic acid (DNA) is a double-stranded molecule, which consists of two strands of…

Q: Which of the following is false about the types of DNA? A. Z-DNA is right handed double helix. B.…

A: Nucleic acids are the organic materials present in all organisms in the form of DNA or RNA. Nucleic…

Q: In DNA-DNA Hybridization, sequences from two separate organisms that show partial hybridization…

A: DNA-DNA hybridization is the process of hybridization of genetic information between two different…

Q: In Avery et al.’s experiments, they used a general proteinase that can break down many types of…

A: In 1944, the Avery–MacLeod–McCarty experiment was conducted using Pneumococcal strains. It was aimed…

Q: Which of the following statements applies to both point and frameshift mutations? A. A base is…

A: Answer- Mutation is any change in the sequence of the DNA by any mutagen. It brings changes to both…

Q: DNA double helix is stabilized by ...   a)  H-bonds between the sugar-phosphate backbones.   b)…

A: Answer. Watson and Crick first describe the structure of DNA double helix in 1953 e using x-ray…

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

A: Nucleotides are defined as the monomeric units that acts as the building block for producing nucleic…

Q: Why is it easy to transform a bacterial cell and then use that to transform an animal or plant cell?…

A: In molecular biology, transformation is the process where the genetic alteration of a cell is…

Q: If you are given a sample of chromosomal DNA, what experiment could you perform to determine whether…

A: The main difference between prokaryotic and eukaryotic. DNA is that prokaryotic DNA is found in the…

Q: Researchers are designing several experiments to test the ability of Salmonella bacteria to develop…

A: Antibiotics are chemicals which are obtained from microbes and helps in inhibiting other pathogenic…

Q: What is the name given to the process that can repair DNA damage and generate genetic diversity?…

A: ANSWER:   The process that can repair DNA damage and generate genetic diversity are: There are…

Q: Levene proposed that DNA was a tetranucleotide, meaning ___.   A. it was made up of the same 4 bases…

A: Phoebus Levene (1869-1940), was a Russian-American biochemist who was the first to discover ribose…

Q: Hershey and Chase were able to see whether the backteriophage moved genetic material because they…

A: The deoxyribonucleic acid (DNA) is the double-stranded molecule which is the genetic material in…

Q: The polymerase chain reaction (PCR) is important because it allows us to Group of answer choices a.…

A: PCR or polymerase chain reaction is the method that is used to amplify DNA to many folds.  The…

Q: You are studying bacterial cells and you find bacteria with a mutation that causes it to produce…

A: The DNA is double stranded in the bacteria .    During the replication these two strands of the DNA…

Q: Base analogs are mutagenic because of which characteristic? a. They produce changes in DNA…

A: Mutagens are physical, chemical, or biological agent that induces mutation by changing the gene…

Q: Griffith discovered a “transforming factor” in bacteria that conveyed infectiousness in 1928. In…

A: Introduction: DNA stands for 'deoxyribonucleic acid' and it is the hereditary material in humans and…

Q: A contig is a. a set of molecular markers used in gene mapping. b. a set of overlapping fragments…

A: DNA is the genetic material that carries genetic information in the form of coded nucleotide…

Q: In DNA technology, the term vector can refer to(A) the enzyme that cuts DNA into…

A: Plasmids are circular, double stranded unit of DNA, which replicates independently of the…

Q: If DNA of a particular species was analyzed and it was found that it contains 27 percent A, what…

A: DNA is composed of a chain of polynucleotides. Nucleotides are made of three important components -…

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: Place the following stages of a physical mapping study in theirmost logical order:A. Clone large…

A: Artificial chromosome- laboratory constructed cloning vectors that carry larger DNA insert than…

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: Which of the strands of DNA could act as a PCR primer for the DNA sequence shown below?…

A: Primer It is a short, single-stranded sequence of DNA which is used in the PCR technique. It is used…

Q: Several experiments aided the discovery of DNA being the inheritable material. Which of the…

A: DNA is a genetic material we know at present but at a certain point of time in the past, it was not…

Q: Within the Central Dogma, what is the primary function of DNA?   a. make proteins   b. preserve…

A: The Central dogma of molecular biology suggest the realshioship between DNA,  rna and proteins and…

Q: n DNA replication, a primer is _____.​   a. ​what the original DNA strands are called   b. ​a…

A: DNA replication is a process in which the double stranded DNA molecule is copied  inorder to produce…

Q: A DNA molecule consists of 500 nitrogenous bases, of which 150 are G bases. So, the percentage of…

A: DNA molecule is the genetic material present in the animals. Genetic material  is present in the…

Q: You are studying bacterial cells and you find bacteria with a mutation that causes it to produce…

A: The DNA is double stranded in the bacteria .    During the replication these two strands of the DNA…

Q: Astronomers have made great strides in sending probes out to other planets and moons in our solar…

A: The genome is made up of DNA (deoxyribonucleic acid). DNA is a chemical molecule that carries genes,…

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.