• Can anyone tell me who discovered DNA and when?

    aha...nice question! 1953, James D. Watson and Francis Crick Francis Crick was born on June 8, 1916 in Northampton, England, into a middle-class family. He began doing science experiments in his home when he was ten years old. He graduated with a degree in Physics from University College in London. James Watson was born on April 6, 1928 in... show more
    aha...nice question! 1953, James D. Watson and Francis Crick Francis Crick was born on June 8, 1916 in Northampton, England, into a middle-class family. He began doing science experiments in his home when he was ten years old. He graduated with a degree in Physics from University College in London. James Watson was born on April 6, 1928 in Chicago, and at the age of 15 enrolled in Chicago University and majored in zoology. He received a Ph.D. in genetics from Indiana University, when he was 22 years old. In 1951, he joined Francis Crick at Cavendish Laboratory in Cambridge, England. He was only 23 years old when his greatest discovery was made. so, are they British?
    3 answers · Biology · 8 years ago
  • Ten scientists who have made major contributions to the understanding of DNA?

    Best answer: as u wish! 1 Friedrich Miescher 2 Phoebus Levene 3 William Astbury 4 Frederick Griffith 5 Colin MacLeod 6 Maclyn McCarty 7 Alfred Hershey 8 Martha Chase 9 James D. Watson last but not least... 10 Francis Crick
    Best answer: as u wish! 1 Friedrich Miescher 2 Phoebus Levene 3 William Astbury 4 Frederick Griffith 5 Colin MacLeod 6 Maclyn McCarty 7 Alfred Hershey 8 Martha Chase 9 James D. Watson last but not least... 10 Francis Crick
    3 answers · Biology · 8 years ago
  • Human cheek cell vs epidermal cell of an onion?

    Best answer: epidermal cell of onion, why? because it has fix and elongated shape compare to the human cheek cell..
    Best answer: epidermal cell of onion, why? because it has fix and elongated shape compare to the human cheek cell..
    1 answer · Biology · 9 years ago
  • Does a chromosome contain the entire DNA of a human?

    That was an interesting question for me, why I am not thinking like u? (LOL) the answer is, NO - of course ! the DNA carries a series of genetic code that represent certain gene in the individuals. we got 46 chromosome, (<--that mean we got 46 single strand of DNA) because each chromosome consist of a long long strand of DNA that being... show more
    That was an interesting question for me, why I am not thinking like u? (LOL) the answer is, NO - of course ! the DNA carries a series of genetic code that represent certain gene in the individuals. we got 46 chromosome, (<--that mean we got 46 single strand of DNA) because each chromosome consist of a long long strand of DNA that being folded.
    4 answers · Biology · 8 years ago
  • I need help in Biology?

    Best answer: answers: 01 prey-predator 02 mutualism 03 commensalism
    Best answer: answers: 01 prey-predator 02 mutualism 03 commensalism
    1 answer · Biology · 8 years ago
  • The function of estrogen is to what?

    FUNCTION (so many...) : = promote formation of female secondary sex characteristics = decelerate height growth[9] = accelerate metabolism (burn fat) = reduce muscle mass = stimulate endometrial growth = increase uterine growth = increase vaginal lubrication =... show more
    FUNCTION (so many...) : = promote formation of female secondary sex characteristics = decelerate height growth[9] = accelerate metabolism (burn fat) = reduce muscle mass = stimulate endometrial growth = increase uterine growth = increase vaginal lubrication = thicken the vaginal wall = maintenance of vessel and skin = reduce bone resorption, increase bone formation = morphic change = increase hepatic production of binding proteins = increase circulating level of factors 2, 7, 9, 10, = decrease antithrombin III = increase platelet adhesiveness = increase HDL, triglyceride = decrease LDL, fat deposition = salt (sodium) and water retention (Fluid balance) = increase cortisol, SHBG (Hormones) = reduce bowel motility (Gastrointestinal tract) = increase cholesterol in bile (Gastrointestinal tract) = increase pheomelanin, reduce eumelanin = support hormone-sensitive breast cancers = promotes lung function by supporting alveoli (in rodents but probably in humans).
    3 answers · Biology · 9 years ago
  • What is the Domain, kingdom, Phylum, Class, order, Family, Genus, and Species of a Meerkat?

    Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Herpestidae Genus: Suricata Species: S. suricatta
    Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Herpestidae Genus: Suricata Species: S. suricatta
    3 answers · Biology · 9 years ago
  • Most protistans are????????

    c. unicellular
    c. unicellular
    2 answers · Biology · 9 years ago
  • Meiosis and mitosis questions?

    Best answer: easy to remember, just remember this : Meiosis = for gonad cell (gametes) = occur at reproductive organs only = produces 4 haploid daughter cell (n) Mitosis = all cells except gametes = occur at all parts of our body except reproductive organs = produces 2 diploid daughter cells (2n)
    Best answer: easy to remember, just remember this : Meiosis = for gonad cell (gametes) = occur at reproductive organs only = produces 4 haploid daughter cell (n) Mitosis = all cells except gametes = occur at all parts of our body except reproductive organs = produces 2 diploid daughter cells (2n)
    4 answers · Biology · 9 years ago
  • Cell Membrane.....?????????

    Cell membrane is like a door to the cell. It will filter which substances can passed through it.
    Cell membrane is like a door to the cell. It will filter which substances can passed through it.
    4 answers · Biology · 9 years ago
  • Please help ASAP! for TEST!!?

    Best answer: * a whorl of sepals (collectively called the calyx) * a whorl of petals (collectively called the corolla) * stamens in which the microsporangia form * carpels in which the megasporangia form. answer:sepals
    Best answer: * a whorl of sepals (collectively called the calyx) * a whorl of petals (collectively called the corolla) * stamens in which the microsporangia form * carpels in which the megasporangia form. answer:sepals
    3 answers · Biology · 9 years ago
  • Plzz help meeee!!!?!?!? eukaryotic gene regulation (bio question)?

    Best answer: that need a loooooong answer! please! free your time to click the following link : http://users.rcn.com/jkimball.ma.ultrane... (it explain everything!)
    Best answer: that need a loooooong answer! please! free your time to click the following link : http://users.rcn.com/jkimball.ma.ultrane... (it explain everything!)
    2 answers · Biology · 9 years ago
  • Monosaccharides, disaccharides etc.?

    Best answer: Monosaccharides (basic) = glucose = fructose = galactose Disaccharides = sucrose (common table sugar)-------------> glucose + fructose = lactose (major sugar in milk)----------------> glucose + galactose = maltose (product of starch digestion)----> glucose + glucose Polysaccharides = starches ( amylose and... show more
    Best answer: Monosaccharides (basic) = glucose = fructose = galactose Disaccharides = sucrose (common table sugar)-------------> glucose + fructose = lactose (major sugar in milk)----------------> glucose + galactose = maltose (product of starch digestion)----> glucose + glucose Polysaccharides = starches ( amylose and amylopectin ) = glycogen ( a polymer of glucose ) = cellulose ( found in the cell wall ) *The resulting linkage between the sugars is called a glycosidic bond.
    4 answers · Biology · 9 years ago
  • Dogfish shark cells there are 24 chromosomes. How many chromosomes would you expect to find in a dogfish sperm?

    cells (2n) = 24, diploid so chromosome in gametes is half from cells; gametes (n) = 12, haploid
    cells (2n) = 24, diploid so chromosome in gametes is half from cells; gametes (n) = 12, haploid
    8 answers · Biology · 9 years ago
  • Gametes contain ___ chromosome numbers?

    haploid easy to remember: cells = diploid, 2n gametes = haploid, n
    haploid easy to remember: cells = diploid, 2n gametes = haploid, n
    5 answers · Biology · 9 years ago
  • Cells produced are haploid...?

    Best answer: 4.True for Meiosis only Only meiosis produce haploid daughter cells. Easy to remember: If mitosis = 2 daughter cells, diploid (2n) If meiosis = 4 daughter cells, haploid (n)
    Best answer: 4.True for Meiosis only Only meiosis produce haploid daughter cells. Easy to remember: If mitosis = 2 daughter cells, diploid (2n) If meiosis = 4 daughter cells, haploid (n)
    3 answers · Biology · 9 years ago
  • How does the corpus luteum forms in the ovary?

    The corpus develops from an ovarian follicle during the luteal phase of the menstrual cycle or estrous cycle, following the release of a secondary oocyte from the follicle during ovulation. The follicle first forms a corpus hemorrhagicum before it becomes a corpus luteum, but the term simply refers to the visible collection of blood left after... show more
    The corpus develops from an ovarian follicle during the luteal phase of the menstrual cycle or estrous cycle, following the release of a secondary oocyte from the follicle during ovulation. The follicle first forms a corpus hemorrhagicum before it becomes a corpus luteum, but the term simply refers to the visible collection of blood left after rupture of the follicle, and has no functional significance. While the oocyte (later the zygote) traverses the Fallopian tube into the uterus, the corpus luteum remains in the ovary.
    2 answers · Biology · 9 years ago
  • Follicle secretes estrogen which causes what?

    Best answer: Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) stimulate the production of estrogen in the ovaries.
    Best answer: Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) stimulate the production of estrogen in the ovaries.
    2 answers · Biology · 9 years ago