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your hair is composedof protein known as keratins that have an alpha helix- like fibrous structure. the alpha helix-structure has approximately 3.6 amion acids per turn of of the helix and a linear dimension of 0.54nm per turn of the helix. for simplicity, let's imagine that a strand of hair is composed of a single keratin molecule in this alpha helix-like state. if you were to grow 25mm(~1inch) in one year, how many turns of alpha helix must be added to the keratin molecule each minute of the year?
At another locus, sepia eyes are inherited as an autosomal (non sex linked) recessive. The presence of the white eye phenotype (x superscript w x superscript w in females, x superscript y in males) masks sepia phenotype, so regardless of the sepia ge..
Which of the following statements is *NOT* true?
The prothalli are bisexual, free-living and photosynthetic. At maturity, the prothallus is flat and heart-shaped. Inspect the lower surface for rhizoids, antheridia and archegonia. What is the function of each of these structures.
Hypothermia and hyperthermia can cause serious damage to the human body. Research and explain these impacts at the cellular level.
Neurospora is a haploid, filamentous fungus normally having fluffy, orange masses of asexual spores called conidia. 2-mutant strains, one having albino conidia,
What is the frequency of heterozygotes (Aa) in a population in which the frequency of all dominant phenotypes is 0.25 and the population is in H-W equilibrium?
explain "strain theory," what are the sources of strain, and how do people cope with it? (Please explain having trouble fully understanding strain theory)
Assume that the D and M genes are on the same chromosome, but they are separated by one hundred map units. You make the following cross: DM / dm x dm / dm.
Assume you isolate the enzyme that synthesizes folic acid in bacteria and conduct few enzyme kinetics experiments. You discover, not surprisingly, that sulfa drugs inhibit enzyme's activity
The most efficient method of generating ATP for most organisms is aerobic respiration.What molecule is needed for aerobic respiration.
Considering geographic distribution, physical environmental conditions, symbiosis, alpha- and beta diversity, and any other factors you consider relevant, describe and explain in some detail the unique conditions associated with hermatypic coral e..
I n tomatoes, two alleles of one locus determine the character difference of purple versus green stems
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