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what is the average rate of amino acid substitution among all the proteins shown and on average, how long would it take to make one change in histone H4? would this serve as a good evolutionary clock?
what percentage of the population display the phenotype B and what percentage of the population are carriers for the recessive allele b what percentage of the population display the recessive phenotyp
Although the bone was properly set, by the time the boy was 16 it was apparent that the injured lower limb was shorter than the normal one. Explain why this difference occurred.
Develop two different questions you would like to have discussed by your classmates and post each question separately to the Discussion Area. The focus of each question can be either of the followin
What caused her symptoms and was her condition due to an infection or an intoxication? Can she transmit this condition to another person?
Imagine the process of translation. A ribosome is bound to an mRNA and has moved several codons downstream from the start codon. At this point in time, the E site, the P site, and the A site all con
what percentage of the surviving spores evidence mutation and hHow many of the surviving spores would you need to check to be 90% certain of finding at least one mutant
How you would prepare a cDNA library from the mRNA transcripts produced by ovary cells and mass-produce progesterone using bacteria.
Find the average number of years per mutation in hemoglobin for each species listed and find the mutation rate in mutation per million years for each species.
How can smelling lunch cause your salivary glands to release saliva? In your answer consider sensory systems (smell), neurons (transfer of information), and release of saliva.
Explain how this effect is generated in neuron A and why one neuron has a greater effect than the other.
Select the three statements that are true. To review the germ layers and the terminology associated with body cavities and An acoelomate triploblast has no endoderm.
The government of Iceland has built a database which contains genetic information about individuals using SNP analysis and other methods, which can be used to help diagnose predisposition to geneti
What combinations of chromosomes are possible in daughter cells following mitosis? C1, C2, M1, M2, S1 and S2. In mitosis the daughter cells copy the mother cell. There is not any crossing over of ma
There is evidence that an evolutionary process known as ''balancing selection'' may be responsible, tending to favor heterozygotes ( more fit) over either the strong tasters (TT) or non-tasters (tt)
One hypothesis is that human skin color is governed by three equally important genes, each of which has two alleles that do not display dominance.
Cell structures can be grouped by their function. Name the four groups of cell structures based on function and describe (structure or function) two organelles included in each group.
Gold is dominant to white, but recessive to green, brown, and blue. White is totally recessive. White dragons are rare because the double dose of white scale color also affects size and reproductive
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 following results:
How is Streptococcus pneumonia distinguished from other streptococci that have the same hemolytic properties? What additional tests are needed or performed?
Which segment of the population is more susceptible to UTIs and what is the most common agent of UTIs
Which two models have similar results after replication cycle 1 and Why were culture samples taken after each replication cycle?
Ignoring the human actions of auto and factory emissions, what generalization can you make about the balance of carbon dioxide in Model 2 over a long period of time?
Explain why it is a good choice environmentally to eat a vegetarian diet using what you have learned about energy transfer in food chains and the second law of thermodynamics.
What happens to Calebs systemic cardiac output as a result of his ventricular septal defect (VSD)? Explain your answer.