• Q : What is the function of dna toposiomerases....
    Biology :

    What is the function of DNA toposiomerases? a. cleaving nucleotides from the ends of DNA b. adding or removing supercoils c. methylation of the nitrogenous bases d. packaging of DNA into nucleosomes

  • Q : Which has the longest wavelength....
    Biology :

    Which of the following has the longest wavelength? a. red light b. green light c. UV (ultraviolet) d. blue light

  • Q : Why you think dna has two strands while rna has one strand....
    Biology :

    Why you think DNA has two strands while RNA has one strand? Relate this to how your own DNA gives you certain characteristics that other members of your family share or don't share.

  • Q : Describe about x-inactivation....
    Biology :

    Which of the following is not true of X-inactivation? a. it is necessary for dosage compention. b. it is the cause of calico color in cats. c. the mechanism includes transcription of the xist gene and

  • Q : To what heterochromatin is associated....
    Biology :

    Heterochromatin is associated with : A. differential gene expression. B. gene silencing. C. mRNA translation. D. heterozygotes. E. all of these.

  • Q : What is the difference between pluripotent and totipotent....
    Biology :

    What is the difference between pluripotent and totipotent? pluripotent cells can make parts of the embryo, totipotent cells can make the embryo and placenta, totipotent is only one cell, more than one

  • Q : What is the difference between a live and dead vaccine....
    Biology :

    Question 1: What is the difference between a live and dead vaccine? Are there any risks associated with either vaccine? Question 2: What does herd immunity mean? Per the CDC, what are some vaccine-pre

  • Q : What is the role of cop ii....
    Biology :

    In order to study the role of COP II you have decided to modify the expression of this protein.  Describe the method you will use to modify COP II expression in your cell.

  • Q : Description of organism and mutants....
    Biology :

    Question 1: How do you know that anaerobic fermentation was occurring? If you have evidence of respiration, identify the gas that was produced. Question 2: Description of organism and mutants?

  • Q : Estimate the biomass concentration....
    Biology :

    Estimate the biomass concentration (mg/l) if in a reaction the initial biomass concentration was 30 mg/l, the growth yield is 0.4 mg/mg, and substrate concentration went from 120 mg/l to 20 mg/l

  • Q : How do the ecdysone and trypsin treatments compare....
    Biology :

    Question 1: Are some discs more sensitive to the ecdysone, than to the trypsin? Question 2: How do the ecdysone and trypsin treatments compare? Question 3: Speculate on the mechanism by which trypsin

  • Q : What is flow of food through the omnivore''s digestive system....
    Biology :

    Question 1: What is the flow of food through the omnivore's digestive system? Question 2: Which wuold be the best mice haplotype to run the vaccination experiment ?

  • Q : Nursing....
    Science :

    Nursing, 1. What is the geopolitical community in you live? Why is it geopolitical? 2. What is a phenomenological community to which you belong? Why is it a phenomenological community? 3. What would

  • Q : How are digestive systems similar of omnivore and herbivore....
    Biology :

    Question 1: Do you think the rate of oxygen generation in a culture of photosynthetic bacteria will be directly proportional to the concentration of cells? Explain. Question 2: How are digestive sys

  • Q : Why is it important to take a baseline measurement of oxygen....
    Biology :

    Why is it important to take a baseline measurement of oxygen generation rate in the dark before taking readings of the organisms at different light levels?

  • Q : What are differences between bony and soft tissue features....
    Biology :

    Question 1: Why is shoreline water typically warmer than mid-channel water? Question 2: What are the differences between bony and soft tissue features ?

  • Q : What are major weight bearing structures for cat and human....
    Biology :

    Question 1: What are major weight bearing structures for cat and human ? Any differences? Question 2: What is the difference in the fungal phyla in terms of their reproduction methods, their means o

  • Q : Define the function of electron carriers....
    Biology :

    Question 1: Compare and contrast cellular respiration and fermentation. Question 2: Define the function of electron carriers. What is the function of electron carriers?

  • Q : Science....
    Science :

    Science, Scientific breakthroughs do not happen overnight. Sometimes, the missing piece of the scientific puzzle takes years to discover. In 1915, Alfred Wegner proposed the theory of continental drif

  • Q : Motion in a plane....
    Physics :

    Motion in a plane, Prove that the magnitude of velocity of a particle does change if a perpendicular force is acted upon it.

  • Q : Motion in a plane....
    Physics :

    Motion in a plane, Prove that the magnitude of velocity of a particle does change if a perpendicular force is acted upon it.

  • Q : Compare and contrast cellular respiration and fermentation....
    Biology :

    Question 1: Compare and contrast cellular respiration and fermentation.Question 2: Define the function of electron carriers. What is the function of electron carriers? What is the location of electr

  • Q : Which layer of the uterus forms a new functional layer....
    Biology :

    Question 1: Which layer of the uterus forms a new functional layer each month? Question 2: What female reproductive structure is functionally homologous to the glans penis?

  • Q : What is unique about the glands of the endocrine system....
    Biology :

    How does blood pressure and heart rate will vary when you sit versus when you stand. How is the endocrine system is involved in the physiological response to temperature and body position. What is uni

  • Q : How do hormones establish selectivity....
    Biology :

    Question 1: Describe how Ca2+ levels in the blood are regulated by hormones.Question 2: How do the nervous and endocrine systems work together to maintain homeostasis of the body?Question 3: Define wh

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