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What is one organelle that is present in animal cells, but not plant cells?A) NucleusB) Golgi apparatusC) Rough Endoplasmic reticulumD) CentriolesE) Cell Wall
What is one organelle that creates spindle fibers necessary for metaphase of mitosis?A) NucleusB) Golgi apparatusC) Rough Endoplasmic reticulumD) CentriolesE) Cell Wall
Assume you are mapping genes on the second chromosome of Drosophila melanogaster using three different true breeding mutant strains:
The protostome developmental sequence arose just once in evolutionary history, resulting in two main subgroups-Lophotrochozoa and Ecdysozoa. What does this finding suggest?
Discuss similarities and differences of the composition and structure of bacterial and eukaryotic ribosomes and identify the features of bacterial ribosomes that are the same for eukaryotic ribosomes
The effective population sizes were recorded for population over five generations; 100, 120, 17, 40, 88. Estimate the harmonic mean of effective population size for this population?
Assume you have identified a mutant E. coli strain that cannot synthesize histidine. To determine the location of the his- mutation on the E. coli chromosome.
If a myofibril were pulled so that the sarcomeres increased in length by approximately 50 percent, what effect would you expect this to have on the contractile ability of the myofibril? Why? What effects would this have on the H, A, and I bands?
Avery, McLeod and McCarthy set out to uncover Griffith's transforming principle: in other words what is it about heat killed smooth, pathogenic Streptococcus pneumoniae that makes rough, avirulent S
Determine where are the hydrophobic or hydrophilic residues concentrated? Where does your mutation fall relative to these clusters and to the inside or outside of the protein?
Two statements that introduce the problem that your hypothesis is addressing. This problem may have to do with specie introductions, or pollution, or a question of natural history strategies, etc.
What does the living microscope specimens, a piece of peacock feather, a sponge, and fern rhizome have in common with the non living specimens, kapok fibers, cotton wool, and sand? What do they have different when looking at them under a microscop..
What progeny ratios are predicted if F1 females are backcrossed with their father?
Hox genes are important to laying out the developing body plan generally, and the developing nervous specifically. How does the layout of Hox genes along the genome relate to the body plan? In general, what is the pattern to how the genes are turn..
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