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1.1 When comparing normal meiosis in human males and females a.) each sperm has 46 chromosomes b.) in most cases each egg and sperm contain single sex chromosomes c.) each egg produced contains one more autosome than a sperm cell d.) all sperm contain the same kind and amount of DNA e.) each egg has 12 autosomes 1.2 All of the following occur during prometaphase of mitosis in animal cells except a.) the centrioles move toward opposite poles. b.) the nucleolus can no longer be seen. c.) the nuclear envelope disappears. d.) chromosomes replicate. e.) the spindle is organized. 1.3 When studying an inherited phenomenon, a geneticist discovers a phenotypic ratio of 9:3:3:1 among offspring of a given mating. A possible explanation for this is a two locus-two alleles at each locus system that exhibits a. epistasis b. linkage c. pleiotropy d. independent assortment e. dominance Page Break 1.4. In peas, a tall, yellow-seeded plant is crossed with a homozygous short, green-seeded plant and yields 203 tall, green-seeded plants, 199 short, green-seeded plants, 207 tall, yellow-seeded plants, and 192 short, yellow-seeded plants. The most likely genotype of the tall, yellow-seeded parent is a. TtYy b. TTYY c. ttyy d. ttYY e. none of the above 1.5. Given an individual who is heterozygous at 5 loci, how many different gametic genotypes are possible? a. 25 b. 10 c. 15 d. 32 e. 64
On a particular microscope, the numerical apertures of the condenser and medium power objective lenses are 1.25 and 0.25, respectively. You are supplied with a filter that selects a wavelength of 520nm.
Both proto-oncogenes and tumor suppressor genes can interact with transcription factors involved cell division. Determine the fundamental difference in how the two function?
Is there an endogenous benzodiazepine? Discuss the evidence for the presence of an endogenous ligand for the benzodiazepine receptor. What is your opinion?
Citric cycle- Which enzymatic defect in the citric cycle cause low oxygen consumption at succinate substrate, but normal consumption of oxygen at furmarate and malate? Explain.
Begin by distinguishing between osmosis and diffusion; how are they similar? In what ways are they different?how to utilize transport substances across the cell.
what is a structural feature you would find in a larvae that helps it survive in a mosquito? what is a structural
Assume that the blue eyes in both families were caused by mutations in the same gene, and that there were no new mutations within the pedigrees
the field of view is the area that you see when looking into th microscope. describe what happens to the field of view as you increase maginfication.
How is the cooling of organs and tissues for medical transplants associated with the effect of temperature upon enzymatic reactions?
Emma has multiple sclerosis. If you could view her nervoussystem you would find. Monoamines have been associated with all of the following except. If inhibitory postsynaptic potentials did not exist
What is the role of the hepatic portal system?
q1. what about while the habitat is not within the u.s. borders? many international conservation groups are working to
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