After conjugation, the donor cell is now F+ and lac+ v and the recipient cell is F+ and lac+ now

Q: In conjugation, when a bacterial F factor is transferred:     the donor cell turns into a…

A: Horizontal gene transfer: It is a process of DNA transfer between unicellular or multicellular…

Q: When the interrupted mating technique was used withfive different strains of Hfr bacteria, the…

A: Bacteria and other prokaryotes do not have a nucleus. Their genome is located in the cytoplasm of…

Q: A piece of DNA ejected by a bacterial cell through a tube-like passage through the cell wall is…

A: Bacterial cells divide by binary fission in which one parent cell divides into two identical…

Q: Why are the recombinants produced from an Hfr x F- crossrarely, if ever, F+?

A: There are many methods which the bacteria used for the transfer of genes from one organism to…

Q: Which of the following cells has the greatest potential to transfer an entire copy of its chromosome…

A: F+ donor Genes can be transferred from one bacteria to the other by the process of genetic…

Q: DNA from a strain of Bacillus subtilis with genotype a + b + c + d + e + is used to transform a…

A: Introduction :- The basic physical and functional unit of heredity is the gene. DNA is the material…

Q: During conjugation,. HFR; F+ function as DNA donors and, function as DNA recipients. F+; F- F-; F+…

A: Conjugation is a type of horizontal gene transfer seen in prokaryotes.

Q: A 2000 nt plasmid with 10 negative supercoils has L= 210 200 190 400

A: 13. A plasmid is a small, circle-shaped DNA present in bacterial cells that can carry out…

Q: Crosses are carried out between a bacterial F- strain and three different Hfr strains. In these…

A: The interrupted mating experiment is given in the question. It is used to find the order of genes…

Q: In the homologous recombination in bacteria, which of the following enzymes has a nuclease activity…

A: Recombination is the process that creates new gene combinations.

Q: i. Mutant A has a single base pair substitution with the T/A being replaced with C/G base pair at…

A: The transcription unit has a coding strand and template strand. Out of these two strands, only the…

Q: On paper, replicate the following segment of DNA: (UPLOAD PHOTO OF YOUR ANSWER) 5' ATCGG CTACGITCAC…

A: Replication is the process of making two similar DNA units from a double-stranded DNA molecule.…

Q: Outline the steps of conjugation via F factors?

A: Conjugation is a phenomena in which the genetic material is transferred from one bacterial cell to…

Q: Now that you’ve isolated the gene and made lots of copies, you need to insert the gene into…

A: Plasmids are used in genetic engineering to increase the number of copies of a gene. A plasmid is a…

Q: In Conjugation,Why  a Donor TransfersDNA Directly to a Recipient?

A: The mechanism involving transfer of genetic material between species of unrelated generations is…

Q: A strain with the ability to conjugate is mixed with a recipient strain.  Recipients are noted to…

A: By the way the question is incomplete. There should be a fourth option as : RECEPIENT has recA gene…

Q: Which of the following process generates a new copy of the transposable element at a new location of…

A: Transposition is a DNA recombination reaction that results in the translocation of a discrete DNA…

Q: DNA obtained from the indicated donor type recombinants are scored. The number of wild-types for…

A: Recipient lacking in b and c genes (a+ b-c-) has the largest number of transformed colonies(462

Q: If you are provided with a family having agenetic disorder in the members.using single strand…

A: Answer: PEDIGREE ANALYSIS : The study of family genetic tree is called pedigree analysis. It is a…

Q: Which of the following approaches you can use to locate the relative positions of genes on…

A: Genes are located on chromosomes. These genes can not be targeted without using any specific gene…

Q: Which of the following molecules helps relieve the tension of unwinding parental DNA strands, by…

A: DNA replication is defined as a process by which a single DNA molecule will produce two identical…

Q: explain Lederberg and Tatum experiment showing conjugation

A: Bacteria are the tiny microbes that inhabit almost every place. Conjugation is the transfer of…

Q: Compare and contrast F+ x F- and F' x F- conjugation.

A: In Bacteria there are different methods of gene transfer,it occurs between two different chromosomes…

Q: The presence (+) or absence (−) of six sequences in each of five bacterial artificial chromosome…

A: Bacteria are a prokaryotic microbe which have undefined nucleus and nuclear membrane. Bacterial…

Q: Discuss TWO (2) common methods you could utilize to transform your recombinant plasmids into the…

A: Recombinant plasmids can be transformed into bacterial cells in common molecular biology…

Q: In the chapter-opening photograph of kernels on an earof corn, what is the genetic basis of the…

A: Part a.The fully pigmented kernel has resulted from the wild-type copy of the C gene expressed in…

Q: Which of the following is a bacterial genetic recombination mechanism that happens with the aid of…

A: Correct answer: Option 3: Transduction

Q: What is the typical result of conjugation between one FT cell and one F cell? a. one Hfr cell and…

A: It is the process by which one bacterium transfers genetic material to another through direct…

Q: Site specific recombination using Cre-Lox system shown below will result in JoxP foxP faaP Fed JoP

A: Cre-Lox system is a site specific recombination technology, which is used for the deletion,…

Q: A bacterial cell with an F factor conjugates with an F− cell.Following conjugation, the two cells…

A: Bacterial conjugation is a type of gene transfer in which one bacterium transfers genetic material…

Q: With regard to conjugation, a key difference between F+ and Hfrcells is that an Hfr cella. is unable…

A: Horizontal gene transfer, also known as lateral gene transfer, is a process in which one bacterium…

Q: Interrupted conjugation was used to map three genes in E. coli. The donor genes first appeared in…

A: Genes are the structural and functional units of heredity that carry coded genetic information in…

Q: Suppose a researcher conducts matings between three Hfr bacterial strains and an F¯ strain. The…

A: The F-plasmid in E. coli can exist as an extrachromosomal genetic element or can be integrated…

Q: A donor strain of bacteria with genotype leu* gal pro* is infected with phages. The phage lysate…

A: The transduction is the process of transfer of genes of a genetic material from bacteria to the…

Q: Fig. 1 shows a simple illustration how recombinant DNA are made. DNA sequence of interest DNA of…

A: The picture describes the process of making recombinant DNA. A recombinant DNA is a DNA molecule…

Q: Match the following Conjugation terms with the most appropriate description in the image: F-…

A: Introduction Conjugation Is The Transfer Of Genetic Material From One Bacterium To Another Through…

Q: Which of the following endonuclease removes a length of DNA between two telomere sequences?a)…

A: Endonucleases are the restriction enzymes which make cuts at a specific positions within the DNA.…

Q: Three pairs of bacterial cells with the given genotypes undergo conjugation. Place match the…

A: F+ bacteria contain gene for the formation of sex pillus which is important for the transfer of…

Q: The presence (+) or absence (−) of six sequences in each of five bacterial artificial chromosome…

A: Bacteria are a prokaryotic microbe which have undefined nucleus and nuclear membrane. Bacterial…

Q: Which of the following occurs between particular short sequences present on otherwise dissimilar…

A: The genetic recombination is the process of exchange of genetic material between two different…

Q: Which of the following is not a cloning vector? O PUC18 O PBR322 O M13 phage O BL21 (DE3)

A: A cloning vector is a little piece of DNA that can be steadily kept up with in an organism, and into…

Q: A strain with the ability to conjugate is mixed with a recipient strain.  Recipients are noted to…

A: Bacterial conjugation can be described as a means of bacterial horizontal gene transfer. It can also…

Q: An interrupted mating study is carried out on Hfr strains 1, 2 and 3. After conjugation is…

A:

Q: In Figure 5-11, which donor alleles become part of therecombinant genome produced?

A: Conjugation is the mechanism by which one bacteria directly transmits genetic material to another.…

Q: A particular Hfr strain normally transmits the pro+marker as the last one in conjugation. In a cross…

A: If the cell such as a Hfr cell loses any of the F-plasmid sequence, then it gets reverted to a…

Q: An F' cell with a functional copy of the threonine gene on the bacterial chromosome, but with a…

A: Introduction Conjugation is the transfer of genetic material from one bacterium to another through…

Q: Which of the following statements about conjugation is false?     After a F- cell has conjugated…

A: Bacteria have the ability to respond to selective pressures and will start to adapt to new…

Q: What is a vector? Which vector did you choose? Explain why you made that choice. What enzyme(s) will…

A: Since you have asked a question with multiple subparts, we can only answer the first three subparts…

Q: Is conjugation a vertical gene transfer?

A: The transfer of genetic material between cells is divided into two major categories, namely…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.