Androphore structure is formed by:
Androphore structure is formed by:
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A fruit has fleshy mesocarp and stony endocarp is (A) Pome (B) Berry (C) Pepo (D) Drupe
A fruit has fleshy mesocarp and stony endocarp is (A) Pome (B) Berry (C) Pepo (D) Drupe
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A drop in temperature does affect spermatogenesis. Reason: during the temperature drop the smooth muscle contracts and brings the testes closer to the pelvic cavity. A. Both assertion and reason are correct and the reason is the correct explanation for the assertion. B. Both assertions and the reason are correct but the reason is not the correct explanation for the assertion. C. The assertion is correct but the reason is incorrect. D. Both assertion and reason are incorrect.
A drop in temperature does affect spermatogenesis. Reason: during the temperature drop the smooth muscle contracts and brings the testes closer to the pelvic cavity. A. Both assertion and reason are correct and the reason is the correct explanation for the assertion. B. Both assertions and the reason are correct but the reason is not the correct explanation for the assertion. C. The assertion is correct but the reason is incorrect. D. Both assertion and reason are incorrect.
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(a) Draw a labelled diagram of the human heart. (b) What is the use of platelets in the maintenance of human beings? (c) Which respiratory pigment is found in red blood corpuscles found in human blood?
(a) Draw a labelled diagram of the human heart. (b) What is the use of platelets in the maintenance of human beings? (c) Which respiratory pigment is found in red blood corpuscles found in human blood?
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A common cloacal aperture is found in (A) Rana (B) Nereis (C) Rabbit (D) Pheretima
A common cloacal aperture is found in (A) Rana (B) Nereis (C) Rabbit (D) Pheretima
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70S type of ribosomes are found in A. Prokaryotic cells B. Prokaryotic cells and chloroplast C. Mitochondria D. Nucleus mitochondria
70S type of ribosomes are found in A. Prokaryotic cells B. Prokaryotic cells and chloroplast C. Mitochondria D. Nucleus mitochondria
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About how much saliva does a person produce in an entire day? A. 100 ml B. 250 ml C. 500 ml D. 1500 ml
About how much saliva does a person produce in an entire day? A. 100 ml B. 250 ml C. 500 ml D. 1500 ml
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After ovulation in a female mammal, the structure which is formed by the ruptured follicle is A. Corpus Luteum B. Graafian follicle C. Placenta D. Epididymis
After ovulation in a female mammal, the structure which is formed by the ruptured follicle is A. Corpus Luteum B. Graafian follicle C. Placenta D. Epididymis
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A condition in which the body’s internal environment remains relatively constant within limits is (a) Hematoma (b) Haemopoiesis (c) Homeostasis (d) Hemostasis
A condition in which the body’s internal environment remains relatively constant within limits is (a) Hematoma (b) Haemopoiesis (c) Homeostasis (d) Hemostasis
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A glass dome covering an area of 3.5 acres with 4000 representatives of most ecosystems and eight human beings in order to prepare a prototype of a space colony is A. Glass house B. Phytotron C. Biosphere 1 D. Biosphere 2
A glass dome covering an area of 3.5 acres with 4000 representatives of most ecosystems and eight human beings in order to prepare a prototype of a space colony is A. Glass house B. Phytotron C. Biosphere 1 D. Biosphere 2
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Genetically modified (GM) crops, such as soybeans, maize, and rice,
Sourav
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Outline the process of genetic modification using bacterial production of a human protein as an example, limited to: (a) isolation of the DNA making up a human gene using restriction enzymes, forming sticky ends (b) cutting of bacterial plasmid DNA with the same restriction enzymes, forming complementary sticky ends (c) insertion of human DNA into bacterial plasmid DNA using DNA ligase to form a recombinant plasmid (d) insertion of recombinant plasmids into bacteria (specific details are not required) (e) multiplication of bacteria containing recombinant plasmids (f) expression in bacteria of the human gene to make the human protein
<h2 class="mb-2 mt-6 text-lg first:mt-3">Process of Genetic Modification Using Bacterial
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Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities
<h2 class="mb-2 mt-6 text-lg first:mt-3">Examples of Genetic Modification</h2> Genetic modification involves
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
Genetic modification (GM) refers to the deliberate alteration of an
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Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products
<h2 class="mb-2 mt-6 text-lg first:mt-3">Conditions to Control in a Fermenter</h2> Fermenters
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Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Fermenters for Large-Scale