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Q1. Describe the controlled experiment that might have produced the data shown for either temperature or pH on enzyme activity. Be sure to declare the hypothesis that was tested here.
Q2. An RNA molecule has the follow percentages of bases: A= 23%, U=42%, C=21 % and G=14%. Is this RNA single stranded or double stranded, how may you tell? What would be the percentages of bases in template strand of the DNA that contains the gene for this RNA?
Assume that a mutation occurs in an intron of a gene encoding a protein. What would the most probable effect of the mutation be on the amino acid sequence of that protein?
If the ATP synthase molecules were randomly orientated so that about half faced the outside of the vesicle and half faced the inside, would you expect ATP to be synthesized.
A subject extends his arm palm up to catch a falling object. The contact of object with the hand triggers a reflexive response in the biceps muscle. But this response is different and opposite if the object is a raw egg instead of a ball. Explain why..
What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration.
Which of the subsequent statements is true about phylogeny. The ancestral group frequently has all the synapomorphies of the descendant species.W hat phenotypes would be seen in the f2 and in what proportion.
Write down 1X4 matrices, P, G, and M that represent the nutritional values of each food. Then find 3P+2G+2M and tell what the entries represent.
What are the probable genotypes of all the parents. What specific benefits will cellular organelles have if enclosed by a cell membrane alike to the plasma membrane.
All through other periods of time, Tony seems very "down." throughout these times he does not take care of himself. He seems to want to sleep all the time, and he often makes thinly veiled references to wanting to commit suicide.
Unexpectedly, a missense mutation found in a protein-coding gene is no longer causing problems for the cell due to the presence of this mutant tRNA. Before the missense mutation in the protein-coding gene, what was the unique encoded amino acid.
Suppose you are a geneticist and you're asked to examine the effects of a radiation leak that occurred at a facility in Iraq several years ago. How will you assess the level of mutations caused by this leak.
In the procedure of carbon fixation, RuBP attaches CO2 molecule to produce a six carbon molecule, which is then split in two. After phosphorylation and reduction, what more needs to occur in the Calvin cycle.
Examine how the pancreatic endocrine hormones glucagon and insulin work antagonistically to maintain homeostasis in the body, throughout times of feast and times of famine.
What combination(s) of chromosomes are possible in haploid cells following both divisions of meiosis? (Hint: remember independent assortment). A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S..
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