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A-Which of the following is NOT completed during interphase?
1. Microtubule-organizing centers are replicated.2. DNA is replicated.3. Chromosomes begin condensing.4. Organelles are replicated.5. Cytoskeleton disassembles.
B-In prokaryotic genome replication and cell division a battery of enzymes copies the DNA of each strand until the entire circle is copied. After the genome has been replicated,
1. The cell approximately doubles its size, inducing cell division2. A new plasma membrane and cell wall are laid down, dividing the cell into two3. the two daughter genomes are attached, side by side, to the plasma membrane4. all of these5. none of these
What limits NPP in terrestrial ecosystems?
A sample was diluted by placing a 0.1mL aliquot into 0.9 mL of diluent, and 100 microliters of this dilution was spread-plated. After incubation, 267 colonies appeared. What is the CFU/mL in the original specimen?
When many excess hydrogen ions accumulate in the blood, what happens to serum pH? The pH: Decreases, increases, or remains constant? Please be clear with explanation.
what is the adaptive advantage of having the system to propel sporangia as seen in pilobolus?
Reporter genes are often used to study how the transcription of a particular gene is controlled during fruit fly development. You are interested in a gene called brainless that you think is involved in neural cell development.
If you obtain 90 colonies after spread plating 1 ml of a 1:100 dilution of lake water, what is the concentration of bacteria in the lake water?
Under what conditions would attenuation take place? c) Under what conditions would transcription continue through to the end of the operon?
Twenty g soil sample was added to 80 ml of water to make the final volume of 100 ml (tube A). Then, ten ml of the ‘tube A' solution was taken and added to 90 ml of water.
Why is the gene coding for ribosomal RNA (rRNA) used for establish phylogenetic relationships and how does this compare to previous methods for placing organisms in appropriate taxa.
Gray seed color in peas is dominant to white. Assume that Mendel conducted a series of experiments where plants with gray seeds were crossed with each other and the following progeny were produced: 320 gray and 80 white.
Explain how your response in first question supports Darwin's theory of evolution by natural selection. i.e. how does this evidence show or allow for descent with modification ?
Given N and E =dominant alleles green nose (homozygous D) pink nose (heterozygous) yellow nose (Homozygous R) two eyes (homozygous D) three eyes (heterozygous) one eye (homozygous R) Make two Punnett squares: 1.) Cross a green-nosed female with a ..
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