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1) Take around 15 index cards and a flashlight which is opaque on all the sides (so that the light shines only through the front) into a very dark room. After keeping all the 15 cards over beam of light, slowly take out the cards single at a time till you can barely detect the light, and then count the number of cards which remain over the light. After a few minutes, light must begin to look brighter. In this case, add a card and see if you may still see the light. Reiterate this process of progressively adding the cards over a 15-minute period. Specify if you are able to detect an increasingly dim light longer you spent in dark?
List and describe at least three cellular features of bacteria that could be targeted to inhibit or kill bacterial pathogen. Which is a significant flaw in this experimental set-up.
In a population of 1000 individuals, 510 show the dominant phenotype. How many individuals would you expect of each of the possible three genotypes for this trait.
While you measure the genotype frequencies of the population you get the following data. What will the frequency of Aa be in the next generation.
An amateur horse breeder has acquired four new bay-coloured mares (female horses) with uncertain pedigree. What are the probable genotypes of the mares purchased.
The offspring of a cross between the purple flowered plant and the white flowered plant are 23 plants with purple flowers and 26 plants with white flowers. What are the genotypes of the parent plants, and witch allele is dominant? Apply the letters W..
If the horticulturist breeding gardenias succeeds in having a single plant with a particularly advantageous set of traits, which would be her most probable and efficient route to establishing a line of such plants.
What are some potential research questions that would be interesting to ask of the species prepare a hypothesis and an experiment to test your hypothesis.
The new form of life is discovered. It has a genetic code much like that of organisms on Earth except that there are five different DNA bases instead of four and the base sequences is translated as doublets instead of triplets. How various different ..
Based on this value, about what proportion of her own body weight in phytoplankton will a 60 kg woman require eating over the course of a year, if this were her only source of energy.
If an animal needed to store energy for long-terms use, but not be encumbered with the weight of extra tissue, which is the best molecule for storage.
What sorts of plants will you select for crossing. Describe how allergies, common cold or influenza change the structures of the respiratory system and cause decrease in gas exchange.
A student argued that this is too time-consuming as the complete amino acid sequence should be determined in order to create the probe. Does the student have a valid argument? Why or why not with reason.
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