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Q1. A fruitfly with red eyes and leg bristles (genotype RrBb) was mated with a white-eyed fly lacking bristles (rrbb). Five hundred offspring were counted, with the follow results-
58 Rrbb offspring; 62 rrBb offspring; 200 RrBb offspring; 180 rrbb offspring.
Based on these results, how much distance is between these two genes on chromosome?
Q2. If a maize plant is heterozygous for the alleles for pigmy and crinkly-leaf (both recessive to normal size of plant (S) and normal leaf (L) is self pollinated and 208 seeds are subsequently collected and germinated, how various would you expect to show-
a) Crinkly leaves
b) Normal size
c) Normal leaves normal size
d) normal leaves and pigmy size
Suppose a deletion mutation takes place on a single chromosome. Which of the following would be most affected by this mutation?
How much of OUR genome is made up of transposable elements and what is the difference between Autonomous vs. Non-autonomous transposons?
Explain why are many hospitals in developed countries consume large amounts of cephalosporin antibiotics, particularly in surgical departments as the preferred choice for prophylaxis and Describe the structure of viruses.
List and depict at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
Define the concept of biodiversity and explain the importance of biodiversity to plant communities. Describe particular threats to biodiversity that you see happening in your area of the country or community and discuss what might be done to count..
In metabolic processes of cell respiration and photosynthesis, prosthetic groups as in heme and iron-sulfur complexes are encountered. What do they do.
Consider the list of scientists that have been awarded a Nobel Price for their work in immunology which one would you consider being the most important work and why?
How many of the four species of bacteria were you lable to isolate on the streak plates? onn the lab excersie 7?
How does the texture of articular cartilage compare to that of periosteum?
Methanogens and Methylotrops are interesting in that they deal in one carbon molecules. Methanogens are obligate anaerobes while most Methylotrophs are aerobic. Describe an ecosystem where you might find both organisms. Briefly describe the ecolog..
what would you expect to happen to the virulence of lyme disease in humans if the pathogen that cause it ( a spirochete bacterium) were to become sexually transmissible between humans
You have 0.05 mL of an undiluted culture at a concentration of 3.6 x 106 CFU/ml. You then add 4.95 mL sterile diluent. what is the dilution, and what is the final concentration of the cells?
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