Biology Answers

can we consider the mammalian musculoskeletal as the superior skeletal and muscular systems? explain

Discuss what happens when an individual with 17 chromosomes mates with an individual of the same species with 16 chromosomes

Using the information from your practical work and referenced supplementary material from secondary sources, discuss the behaviour of the chromosomes during mitosis and meiosis in each stage of cell division, including the similarities and differences between plant and animal cells. Ensure you cover: 

• Mitosis - interphase, prophase, metaphase, anaphase, telophase

• Meiosis - interphase, prophase I, metaphase I, anaphase I, telophase I, cytokinesis, interkinesis, prophase II, metaphase II, anaphase II, telophase II, cytokinesis

Evaluate the significance of chromosomal behaviour during cell division. Provide justified arguments for and against the behaviour of independent assortment and crossing over leading to variation within an organism.

Why is acetyl Coenzyme A, an important molecule in cellular respiration? (2 marks)

Explain chemiosmosis with the aid of a neatly drawn and annotated diagram.

Make use of a neatly annotated line diagram to illustrate the structure of a mitochondrion. Also indicate where the various main reactions take place. (8 marks)