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Q1. 1. What one vital function do both mitosis and meiosis perform for an organism? Describe. 2. List and describe two examples of when cells in a human need to undergo mitosis. What type of cell is produced (haploid or diploid)? Explain what this means.
3. When would a human need to undergo the process of meiosis? What type of cell is produced (haploid or diploid)? Explain what this means.
4. Think about what would happen if meiosis did not occur. What effect would this have on humans as a species? Explain the response fully.
Q2. How may stomata density serve as a bioindicator for monitoring the response of plants to changes in greenhouse gas concentrations in the future? (Hint: what do the data say for how stomata density varies with CO2 concentration?)
q1. universal credit inc. would like to examine the necessary sample size needed to be able to estimate the mean
When an experiment is repeated with a protein medium, yeasts grow only in the presence of oxygen. Pasteur concluded that the yeasts can take oxygen from air, and in the absence of air, the yeasts take oxygen from sugar.
Consider two gene loci in the mouse, locus 1 and locus 2. Each locus is on a different, nonhomologous autosomal chromosome . Alleles at locus 1 influence fur color.
High concentrations of caffeine causes an isolated muscle to contract in the absence of any activity in the motor nerve. This contraction is not blocked by nicotinic blocking agents like curare. Where do you think caffeine acts?
The gecko is a reptile that has amazing ability to climb smooth surfaces even glass. Recent discoveries indicate that geckos stick to smooth surfaces via van der Waals interactions in septae on their feet and smooth surface.
Organize the genotype in the table, define the origin (parental, single cross-over progeny and double-crossover progeny) and find out the order of the genes on the chromosome.
Why did the successful cloning of Dolly the sheep support the idea that the differentiation of different cell types observed in development is orchestrated by gene regulation.
A gel electrophoresis of PCR products was ran to test for the presence of genetic modification. The samples were a positive control, a negative control, 5 different fruits, and a control DNA. What is the purpose of the pre-extracted control DNA?
Zinc, an essential trace element, may be found bound to the active site of some enzymes. What would be the most likely function of such zinc ions?
In the diversity and abundance of bacteria, we always have some uncertainty about the identity of an isolate. With this in mind, how can we be certain that growth with a metallic sheen is truly a coliform bacterium
According to the Acceptable Macronutrient Distribution Range (AMDR), what is the lowest percent of one's total kcalories that should come from carbohydrates?
There is evidence that many of differences in DNA sequence among species are not adaptive. Other differences among species, both in DNA and in morphology
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