does DNA encode the instructions to make us? Select all the true statements. Group of answer choices ( select all the true answers) a) DNA encodes the heritable instructions to make proteins b) DNA is directly translated into proteins c) DNA is first transcribed into mRNA, then the mRNA is translated into protein d) RNA is first transcribed into DNA, which is then translated into protein e) Each of our cells contains the same DNA, but different genes are transcribed and translated in different cell types

does DNA encode the instructions to make us? Select all the true statements. Group of answer choices ( select all the true answers) a) DNA encodes the heritable instructions to make proteins b) DNA is directly translated into proteins c) DNA is first transcribed into mRNA, then the mRNA is translated into protein d) RNA is first transcribed into DNA, which is then translated into protein e) Each of our cells contains the same DNA, but different genes are transcribed and translated in different cell types

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 6QP: Although it is well known that X-rays cause mutations, they are routinely used to diagnose medical...

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With the exception of retroviruses, the direction of transfer of genetic information in all living things is as follows: A. pRNA--> DNA--> mRNA--> protein. B. DNA--> tRNA--> protein C. protein--> DNA--> mRNA D. DNA--> mRNA--> protein
What is a gene? Why are genes for rRNA and tRNA considered to be genes even though they do not produce polypeptides?
In Hershey-Chase experiment, bacteriophages protein coats were tagged with radioactive isotope S-32. These phages were used to infect E. coli cells and the cells were further centrifuged to form pellets. Why was the radioactivity level of S-32 found greater outside the cells compared to the E. coli cell pellets? Explain briefly. If the experiment is repeated in the same manner but this time the phage protein coats are labelled with isotope X and the phage DNA with isotope Y, which isotope’s radioactivity will be found in greater amounts in the E. coli cell pellets after centrifugation? Explain briefly.
. You are interested in a eukaryotic protein involved in immunity, and you are attempting to express this protein in E. coli in order to produce large amounts of the protein. You have identified the gene and place a copy of the gene on a plasmid in E. coli next to a bacterial promoter sequence. You determine that lots of mRNA is made from your gene in your E. coli system, but the protein produced is larger and doesn't have the same properties as the eukaryotic protein you expected. What mistake have you made and how can you fix it?
When using bacteria to produce a particular protein, why is it usually better to use the cDNA version of the gene rather than the genomic DNA version?
What is the first step in quantifying the relative amounts of mRNA in different tissues? Would this method be useful in determining which immune system genes might be over-expressed in severe Covid cases? Why or why not? Could quantitative PCR, which uses a DNA-binding dye, to show how many copies of the target DNA sequence could be used to quantify the amount of mRNA in a cell? Would you expect that a metabolically active tissue such as the liver would show more cDNA copies in such a method, compared to less metabolically active tissues such as skin cells? One reason that the types and amounts of mRNAs are quantified in different tissue types is to compare which genes are activated and which are inactive. It used to be thought that any gene that was transcribed was automatically translated. The discovery of RNA-degrading systems shows that the real situation in cells is more complemented. Do you believe that a larger amount of mRNA of a given type, say for alpha hemoglobin in…
Bacteria are often the preferred hosts for genetic engineering projects by splicing in novel genes from eukaryotes into plasmids, which are moved into competent bacteria. For instance, the gene for human insulin was isolated and moved into a bacterium, which can now produce the much-needed chemical. Previously, type 1 diabetics had to rely on professionals that gathered insulin from human cadavers, cows, and pigs. In order for this feat of genetic engineering to occur, researchers had to start with an unspliced mRNA transcript for h insulin. Agree/Disagree? Explain your response.
A scientist is trying to get a bacterium to make human insulin. The scientist uses restriction enzymes to cut out the human gene. They use the same restriction enzyme to cut the bacterial DNA so the two sections of DNA can connect. Then they used ligase to seal the backbones together. The bacteria is allowed to grow and produce proteins. But for some reason, the insulin gene is being transcribed and translated but for some reason the protein is nonfunctional. What is the source of the problem? How can this be fixed? (this will require some research on the internet about cDNA)
A scientist observing a cell during gene expression would be able to easily distinguish it as a prokaryotic cell by which of the following observations? Group of answer choices as soon as the DNA introns are removed from the template after the 5' caps are converted to mRNA after a transcription initiation complex has been formed during transcription once the pre-mRNA has been converted to mRNA 2. Which of the following is least related to the other items? Group of answer choices inducer repressor operator enhancers regulator
What is the "RNA World" hypothesis?
A scientist observing a cell during gene expression would be able to easily distinguish it as a prokaryotic cell by which of the following observations? Group of answer choices as soon as the DNA introns are removed from the template after the 5' caps are converted to mRNA after a transcription initiation complex has been formed during transcription once the pre-mRNA has been converted to mRNA 2. A scientist working in an IVF (in vitro fertilization) clinic mistakenly produced a human zygote with 45 chromosomes. What biological process could explain how this happened? Group of answer choices failure of an egg to complete meiosis II failure of the egg nucleus to be fertilized by the sperm a non-disjunction in meiotic anaphase occurring in either an egg or sperm incomplete cytokinesis during spermatogenesis after meiosis I
What does the kpc gene do ?