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Q1. Conjunction mapping could be used to locate genes on a bacterial chromosome. In this example, F+ strain is able to synthesize methionine, valine, leucine, and histidine. The F- strain is unable to synthesize these amino acids; therefore, they should be supplied in the growth medium. Use the results from replica-plating to answer the questions.
1. On which media, if any, must the F+ be able to grow? The F-?
2. Recognize the prototrophs and auxotrophs. How can you advise?
3. Can you map the chromosome of this species? What further information do you need?
Q2. The seeds of orchids are among the smallest known, with virtually no endosperm and with miniscule seed leaves. As a result, what must one expect to be true of such seeds?
Discuss similarities and differences of homeostatic mechanisms for thermoregulation in ectothermic and endothermic animals.
State how the amonio acids sequence you obtained from the gene fragment for botana curus compares with the sequence for other three species.
Write a brief note on Cystic Fibrosis, including its etiology (cause), symptoms, and possible management approach.
Your colleague also collected plants from higher up Kinport Peak, where situations are harsher. You again genotype a sampling of sego lilies, finding 125 DD, 55 Dd, 20 dd.
In the telophase stage of mitosis, microtubules gather along the cell's equator. The purpose of these microtubules is to what.
What are two physical properties that can be used to separate or to characterize proteins.
Why are the allele frequencies so low for the STR alleles?
In an experiment you are studying a neuron that receives synaptic inputs from two other neurons: one from neuron A and one from neuron B. Illustrate a separate graph for each value of Vm.
q. two different strains of fies are each homozygous for different recessive mutant alleles of the short wing gene sw1
We know that all radioactive isotopes decay over time as they emit particles and change into daughter isotopes. Briefly explain how radioactive decay and the concept of a half life enables scientists to estimate the ages of rocks.
Knowing that a plant will grow from a single cell in tissue culture, how could you transform a plant so that it glows in the dark?
Dozens of potato varieties exist, differing from each other in potato-tuber size, skin colour, flesh colour, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classifi..
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