The Earth's largest phylum is Arthropoda, including centipedes, millipedes, crustaceans, and insects. The insects have shown to be a particularly successful class within the phylum. What biological characteristics have contributed to the success of insects? In many science fiction scenarios, post-ap...
1. Genetics, lifestyle, and environmental influences are all thought to influence the occurrence, worsening, and treatment of cancer. Which factor do you think has the biggest influence? Find an article to support your position.
2. Would your answer to the previous question vary based on the typ...
In rats, the following genotypes of two independently assorting autosomal genes determine coat color.
For the following cross, what fraction of the offspring would you expect to have each genotype?
AAbbCC x aaBBcc
View these resources to complete this assignment:
Scientific American Instant Egghead Video: Can Microbes clean Up Our Oily Mess?
Interview with Professor Barbara Block on BBC News:
Explore the new era of personalized medicine that uses genetic mapping to determine medical treatment. Watch the NOVA video: Cracking Your Genetic Code to learn more about the genetic technology available to us and what it means for medicine, ethics, and the future of human society.
Some questions are easier than others but I would like to double check they are right please. Would appreciate if someone could help, I need to submit this by Monday.
1. Eye color is an X-linked gene and red is dominant to white in Drosophila. If I mate a red eyes male with a white eyes female...
The overall goal of gene therapy is to restore normal function in cells that are affected by genetic disorders.
How does gene therapy work?
What are the challenges of gene therapy?
Research the stories of Ashanti de Silva and Jesse Gelsinger. Based on the outcomes of these treatments, do you ...
Cancer is a very complex disease having many causes.
What are some of these causes of cancer?
Although tobacco smoking is responsible for a large number of human cancers, not all smokers develop cancer. Why is this?
Pick a specific tumor suppressor gene or oncogene and explain how this gen...
Why do cells have telomeres?
Why do telomeres get shorter every time a cell divides? What counteracts this shortening?
What role do telomeres play in aging? You may want to do some research into dyskeratosis congenita.
If telomerase makes cancer cells immortal, could it prevent normal cells...
1. What is the mutation, how does this mutation impact DNA replication?
2. How was the relationship between the mutation and the disease discovered?
3. What are the symptoms of the disease?
4. How does the problem in DNA replication lead to the symptoms of the disease (a discussion of transcripti...
1. A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S2. No crossing over occurs.
a. What combination(s) of chromosomes are possible in daughter cells following mitosis?
b. What combination(s) of chromosomes are possible in...
Organisms vary widely in the number of chromosomes per cell. The ant, Myrmecia pilosula, has only two chromosomes (one pair) per cell. By contrast, the fern, Ophioglossum, has up to 1260 chromosomes (630 pairs) per cell. This variation among organisms seems to be unrelated to how complex those speci...
If you knew that an untreatable, devastating, late-onset, inherited disease runs in your family, in other words, a disease that does not appear until after age 40, and you could be tested for it at age 20, would you want to know whether you will develop the disease? Would your answer be likely to ch...
What blood type(s) can a child born to a mother with B- blood type and a father with A+ blood type have? Explain your answer fully. Be sure to focus on the concepts of dominant and recessive alleles, multiple alleles, and codominance in your explanation.
Are there any special concerns this mothe...
in the Prophase what happens when problems occurs with this phase? Does mitosis proceed normally, if not were in mitosis do problems occur and what could be the out come of the cell? What would be the impact of the body as a whole if this happens (problems with the cells)?
What exactly are SMAD transcription factors and how do they regulate transcription? (can you please outline their involvement in the pathway in a simply manner which I can then use as a basis for my essay. Thank you!
Can you please explain the age old "Nature vs. Nurture theory?
How do we get from the 4 letter code (DNA) to the 20 letter code (proteins)?
Any Insight most welcome!
Future "someone" (hopefully)
After Watson and Crick proposed the double helix structure for DNA, three models for DNA replication were proposed: conservative, semiconservative, and dispersive. In the conservative model, the first replication produces one daughter molecule containing both parental strands and another containing ...
ANGLIA RUSKIN UNIVERSITY
DEPARTMENT OF LIFE SCIENCES
Principles of Genetics MOD002804
Part A: Questions from the Drosophila melanogaster cross practical
1) Present the results of the Drosophila cross in a suitable format. Include your results and class results. (5)
5. State the distribution (in terms of expected percentages) of eye color among the male and female offspring derived from each of the following crosses considering the following:
In the fruit fly, red eye color "R" is dominant over white eye color "r"; and the gene for eye color is on the X chr...
a. In guinea pigs, black coat color (B) is dominant over white coat color (b). When a true breeding black guinea pig is crossed to a true breeding white guinea pig, what is the probability that their progeny will be black? Explain.
b. If two heterozygous black guinea pigs are crossed, what fract...
The MN blood group in humans is under the control of a pair of codominant alleles, LM
and LN. In a group of 556 individuals, the following genotypic frequencies are found:
(a) Calculate the frequency of the LM and LN alleles.
(b) Test (using the Chi-squared test) wh...