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A hermaphroditic plant species has 5 alleles at itsself-compatibility locus, S1, S2, S3, S4, S5. The genotype ofthe stigma is S3S4. A pollen grain lands on the stigma withthe genotype S1S3. In this case, A. the pollen grain germinatesand fertilizes an ovule. B. the pollen grain aborts. C. the stigma surfacebursts. D. the pollen grain germinates,fertilizes an ovule, but the ovule aborts. E. none of the aboveapplies.
Albinism in humans is inhereted as a simple recessive trait. determine the genotypes of the parents and offspring for thefollowing families. when alternative genotypes are possible, list both.
Describe the benefits of delaying sexual activity until individuals are older. Describe benefits of exercise for weight loss and weight maintenance.
Estimate how many photons of light are minimally required to build one glucose molecule in photosynthesis and describe your answer
A double-stranded B-form DNA molecule contains 460 nucleotides.If this molecule is completely relaxed;
In the cell bio lab, we use company manufactured gels, however you can make you own polyacrylamide gels. Discuss all of the ingredients found in an SDS-PAGE gel.
Diffusion is defined as the movement of solute molecules from a region of high concentration to low concentration. To learn about some of the factors that affect the rate of diffusion,How would increasing temperature affect diffusion rate
A double-stranded piece of DNA, 100 base pairs in size, is exposed to a high pH environment. This causes all non-valent interactions to be disrupted.
Theoretically, plants could increase or decrease the size of individual stomata and still achieve the same result as varying the number of stomata. But they dont do this- plants only vary stomata number, not size. Why?
Discuss the similarities and differences between fungi and protists. How do both of these kingdoms differ from the kingdom Eubacteria?
Discuss the advantage of having species-specific receptors on the plasma membrane of the egg?
If succinylcholine is an analog of acetylcholine, why do you think it causes muscles to relax, and not to contract as acetylcholine does?
A paricular operonencodes enzymes that together manufacture an essential amino acid.If the regulation of this operon is like that of the trp operonthen?
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