How does natural selection favor individuals that are better adapted to their environment?
How does natural selection favor individuals that are better adapted to their environment?
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Questions and Answers For
IB Biology
662 Questions
Why do species tend to produce more offspring than their environment can support?
Why do species tend to produce more offspring than their environment can support?
1 Answer
How do adaptations make an individual suited to its environment and way of life?
How do adaptations make an individual suited to its environment and way of life?
1 Answer
What are the main sources of variation in a species, and how do mutation, meiosis, and sexual reproduction contribute to it?
What are the main sources of variation in a species, and how do mutation, meiosis, and sexual reproduction contribute to it?
1 Answer
Why is variation essential for natural selection to occur within a species?
Why is variation essential for natural selection to occur within a species?
1 Answer
What patterns or trends exist in the bone structures of vertebrate limbs, and what discrepancies might exist based on their varied functions?
What patterns or trends exist in the bone structures of vertebrate limbs, and what discrepancies might exist based on their varied functions?
1 Answer
How does the structure of the pentadactyl limb differ among mammals, birds, amphibians, and reptiles, despite its presence in all?
How does the structure of the pentadactyl limb differ among mammals, birds, amphibians, and reptiles, despite its presence in all?
1 Answer
How has pollution influenced the development of melanistic (dark-colored) insects in certain areas?
How has pollution influenced the development of melanistic (dark-colored) insects in certain areas?
1 Answer
How does continuous variation across the geographical range of related populations support the concept of gradual divergence?
How does continuous variation across the geographical range of related populations support the concept of gradual divergence?
1 Answer
How can populations of a species gradually diverge into separate species through evolution?
How can populations of a species gradually diverge into separate species through evolution?
1 Answer
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Top Questions
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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
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Explain the use of lactase to produce lactosefree milk
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Lactase to Produce
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