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1) Besides the production of spores, what other properties doesthe sporophyte have?2) What is the ploidy level of : fern-fronds with sori,prothallium
Which of the following is associated with a deficiency of folate?
In a chemical reaction the free energy change (/\Go') is -40 jk/mol and the entropy factor T/\S is 15 kj/mol. the enthalpy change /\H for the reaction is
Why do blood vessles and nerves travel in connective tissues and not between the cells of epithelial membranes? How can genetic characteristics associated with nonreproductive activities such as feeding affected by natural selection?
As a result of single intake of 6.3x10^3 Bq of a radionuclide, a particular organ will receive doses of the 0.2 mGy from a low energy beta particles and 0.05 mGy from the alpha particles during next 50 y.
Studies have demonstrate that the effect of neuropeptide Y on smooth muscle cells in the uterus is attenuated doing pregancy.
Estimate how much 1 M NaOH that is needed to adjust the pH of 200 ml of 0.2 M H3PO4 to pH 4.0, 6.82, and 9.0 . The pKa1, pKa2 and pKa3 of H3PO4 are 2.15,
June is developing new strains of horticultural plants, and she wants to check the chromosome numbers of her specimens. What would be the chromosome composition of the petal, pollen, and megaspore?
Cord blood stem cells are stem cells with hematopoietic potential. In class, we have learned about drawbacks and benefits of CBSCs over HSCs.
Discuss how the barrier function of membranes is utilized in the production of ATP in the electron transport system of mitochondria.
A substantial increase in the mutation rate in E.coli would be caused by: Which of the following could makebacteria resistant to the bacteriophage λvir?
There's a whole new world of stem cells, therapeutic cloning, and medical breakthroughs out there, and you need to know about them. How do you feel about the controversies surrounding these issues and how do you think these breakthroughs will affe..
q1. scientists are studying bacteria discovered the sea floor. in the absence of light these bacteria can use organic
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