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Genetics

This solution provides a map of a typical Ti-based plasmid from agrobacterium tumefaciens, explains the various elements present and why they are needed to transfect a gene into plant cells.

Early research established that the full naturally occurring Bt protoxin is a protein containing 1156 amino acids (later work has shown that insecticidal activity results from a much shorter amino acid sequence). The Bt protoxin gene was introduced into plant cells using a vector based on the Ti plasmid of Agrobacterium tume

Hardy-Weinberg

Discuss why the Hardy-Weinberg laws are important in biology. Be sure to give specific examples to support your answer.

Hox genes conservation among species

For many of the mammalian Hox genes, it has been possible to determine that some of them are more similar to one of the insect HOM-C genes than to the others. Describe an experimental approach using the tools of molecular biology that would allow such a determination.

Highlight genetically modified organisms.

Compose a letter to a member of Congress representing pro/cons concerning the development and usage of GMOâ??s. (genetically modified organisms(. 3pros 3cons -Thanks

How to analyze data from a reporter assay

** Please see the attached file for the complete problem description ** Information: If Egr-1 is a transcription factor that regulates expression of the GalK gene, then it would be expected that the GalK gene would possess upstream promoter regions to which Egr-1 would bind. Analysis of the published sequence of the GalK g

Media-Selective and Differential Traits

Explain how one media can identify both the selective and differential nature of the organism. Each one identifies different properties of the organism growing on the agar.

Learning and Genetics

Analyze the relationship between genetics and learning. Thank you so much for your help!

Debate Over Genetic Food Modification

A brief overview of the debate surrounding genetic food modification, the process by which transgenic organisms are created. How is this process similar to the more traditional selective breeding and how is it different? What are the potential benefits of genetic modification of food? What are the concerns of those opposed to

Genetics: mutation and punnet square problems

6) Mutational changes were introduced in a single codon in the gene of T4 phage. The following amino acid substitutions were observed. By following the base changes in the codons determine the codon for each mutant. Assume each amino acid substitution resulted from a single base substitution. Codons for several amino acids are p

Genetics problems

1. A child wonders if she is adopted and hence compares her blood type to those of her parents. Her father is type AB and her mother is type O. What blood type of the child would indicate that she might have been adopted? 2. Color blindness is a sex linked recessive trait in humans. The only member of Judy's family who is

Problems with a Single Chromosome

1) The genes GHI are on a single chromosome in the following order: ---G--------H-------------------------------------- I ------------------ 5 mu 15 mu The distance between G and H is 5 mu and the distance between genes H an I is 15 mu. What are the numbers of various progeny (assume a total of 4

Hemoglobin

Conclusions related to sickle cell anemia based on a gel eltrophoresis sample image.

Order of alleles

I have a question from class where we have to write out the genotype of the triply heterozygous mother (given the frequency of the progeny). What I'm having trouble understanding is, how can it be determined what order to write the alleles in if the chromosome number isn't given or if it doesn't state if its sex-linked? Is the

Consider the following two genotypes AABB, aabb

Consider the following two genotypes: AABB , aabb where A and B are dominant and a and b are recessive: 1) What is the genotype of the F1 progeny from an AABB x aabb cross? 2) Construct a Punnet square of the F1 self cross (i.e. F1 x F1). What are the genotypic ratios from this testcross? What are the phenotypic ratios?

If you isolated a cDNA coding of an unknown gene transcription factor, determine how you could perform the following: (i) isolation of genomic gene encoding for the cDNA and the characterization of the structure, (ii) the chromosomal location of the gene, (iii) and identity of the genes within a cell whose expression is potentially regulated by this transcription factor.

If you isolated a cDNA coding of an unknown gene transcription factor, determine how you could perform the following: (i) isolation of genomic gene encoding for the cDNA and the characterization of the structure, (ii) the chromosomal location of the gene, (iii) and identity of the genes within a cell whose expression is potenti

Genentech Research Paper

Subject: Organizational Behavior Business to research: Genentech Website: http://www.gene.com/gene/index.jsp 1. Develop an outline for your paper accordingly: provide a brief history of the company including their products and services and how they go to market. For example, what were their primary products in the begi

Meiosis Questions

Name the phase in which a sister chromatid begins to separate from each other. Give the name for homologous chromosomes being in separate cells at the end of cell division. Give the name for the phase in which homologous chromosomes appear. Give the name of the phase in which a homologous chromosome breaks apart and beg

The context of breeding a champion bull is presented.

A farmer breeds a champion bull with a good quality cow of the same breed. Discuss why the offspring from the champion bull may not necessarily have the attributes to become champions themselves. Include simple diagrams and describe how the characters resulting in a favourable phenotype arise and the importance of combinations

Hardy-Weinberg equilibrium question

Please help with the following problem. If the frequency of the dominant phenotypes (AA + Aa) is 0.8 and the population is in Hardy-Weinberg equilibrium, can you calculate the allele frequencies? Can you calculate the genotype frequencies? Show your calculations.

Three questions on various genetics topics.

1. Two mothers give birth to sons at the same time in a busy urban hospital. The son of couple #1 is afflicted with hemophilia A. Neither parent has the disease. Couple #2 has a normal son despite the fact that the father has hemophilia A. The two couples sue the hospital in court claiming that a careless doctor swapped their b

Discussion of probability and use of dihybrid cross

Understanding Inheritance and probability If we perform a F1 cross of the corn we can predict the probabilities of obtaining a particular outcome. For example, we can ask; what is the probability of getting a purple smooth corn seed from a dihybrid F1 cross of PpSs?

short answer help

please answer these questions: Short Answers 1. Diagram the process of meiosis using the four chromosomes given below. 2. A father has dimples, the mother does not have dimples, and one of their three children have dimples but the other two do not. Dimples (D) are dominant over no dimples (d). Give the probable gen

L. monocytogenes

1.) Discuss how L. monocytogenes causes foodborne disease and why it's a significant pathogen.

Forming Hypotheses

I need help with this question. I just need some steps in figuring it out Im totally lost Recall that mRNA has one start codon and three codons. based on what you know about process of gene expression, hypothesize why it would be benefecial to have only one start codon but three stop codons in this process.