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There are numerous instances where environmental conditions profoundly affect phenotypes. Which of the following is probably NOT an example of the environment causing differences on the same genoty
If a family has 4 boys and 3 girls, what is the probability that the next child will be a girl?
On cessation of this artificial ventilation, the patient fails to breathe for 1 minute. The most important probable cause of this temporary apnea is decreased activity of the what?
What might have happened if you had used D1S80 primers to amplify a segment of the pLAF plasmid? What might have happened if you had digested your genomic DNA with the EcoRI and BpmI restriction enz
Your pathway should be redox balanced (with respect to NAD+and NADH), should involve no net depletion of TCA cycle intermediates, but does not necessarily need to yield a net gain of ATP.
the succinate, fumarate or malate was not consumed by the cell suspension but was still detectable at the end of the experiment. What is the correct interpretation of these observations?
How are infections of upper respiratory tract different from those of lower respiratory tract and why are infections of the upper respiratory tract milder as compared to those pertaining to the lower
Dorsal expression is highest in the ventral part of the embryo and is responsible for directing the differentiation of cells in that region toward ventral fates. Why then is the gene called Dorsal,
The number of fir trees in the plots is 10, 12, 7, and 11, respectively. What is the estimated density of firs in the forest?
what percentage of the base pairs are altered each day and if a cell can withstand up to 0.0001% alteration of DNA on any given day how many base pairs can be altered?
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)