Explain what is meant by homologous pairs of chromosomes
Explain what is meant by homologous pairs of chromosomes
1 Answer
Questions and Answers
Explain the meanings of the terms haploid (n) and diploid (2n)
Explain the meanings of the terms haploid (n) and diploid (2n)
1 Answer
Describe the role of gibberellin in the germination of barley
Describe the role of gibberellin in the germination of barley
1 Answer
Explain the role of auxin in elongation growth by stimulating proton pumping to acidify cell walls
Explain the role of auxin in elongation growth by stimulating proton pumping to acidify cell walls
1 Answer
Describe the rapid response of the Venus fly trap to stimulation of hairs on the lobes of modified leaves and explain how the closure of the trap is achieved
Describe the rapid response of the Venus fly trap to stimulation of hairs on the lobes of modified leaves and explain how the closure of the trap is achieved
1 Answer
Explain the sliding filament model of muscular contraction including the roles of troponin, tropomyosin, calcium ions and ATP
Explain the sliding filament model of muscular contraction including the roles of troponin, tropomyosin, calcium ions and ATP
1 Answer
Describe the ultrastructure of striated muscle with reference to sarcomere structure using electron micrographs and diagrams
Describe the ultrastructure of striated muscle with reference to sarcomere structure using electron micrographs and diagrams
1 Answer
Describe the roles of neuromuscular junctions, the T-tubule system and sarcoplasmic reticulum in stimulating contraction in striated muscle
Describe the roles of neuromuscular junctions, the T-tubule system and sarcoplasmic reticulum in stimulating contraction in striated muscle
1 Answer
Describe the structure of a cholinergic synapse and explain how it functions, including the role of calcium ions
Describe the structure of a cholinergic synapse and explain how it functions, including the role of calcium ions
1 Answer
Explain the importance of the refractory period in determining the frequency of impulses
Explain the importance of the refractory period in determining the frequency of impulses
1 Answer
Quiz Leaderboard
1st
Sourav
Score: 90%
Questions: 20
2nd
Priyanka
Score: 90%
Questions: 10
3rd
Vesnce
Score: 45%
Questions: 20
4th
Hector
Score: 40%
Questions: 10
Total Questions 2747
Top Questions
-
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
-
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
-
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
-
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
-
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
-
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
-
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
- All Questions