32) The sexual life cycle increase the genetic variation in a species by 33) Whe

Question

32) The sexual life cycle increase the genetic variation in a species by 33) When a disease is said to have a multifactorial basis, it means that 4) Besides the ability of some cancer cells to over-proliferate, what else could logically result in a tumor? A) metastasis B) changes in the order of cell cycle stages C) lack of appropriate cell death D) inability to form spindles D) inability of chromosomes to meet at the metaphase plate One difference between cancer cells and normal cells is that cancer cells A) are unable to synthesize DNA. B) are arrested at the S phase of the cell cycle. C) cannot function properly because they are affected by density-dependent inhibition D) are always in the M phase of the cell cycle. E) continue to divide even when they are tightly packed together 35

Explanation / Answer

32) It does so because the sexual variation involves crossing over which leads to different proportions of maternal and paternal genes being inherited thus producing variation in the offpring. The offspring is hence not a genetic copy of the parent.

33) both genetic and environmental factors contribute to the disease.

kindly ask questions separtely and not all together

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