Question

what constitutes the link between one generation and next generation​

Answer 1

Explanation:

The hereditary information is transferred from parents to offspring through the gametes. So, gametes constitute the link between one generation and the next and pass on the paternal and maternal characters to the offspring.

Answer 2

Generations are linked to each other by the genes.

Explanation:

• Genes are the hereditary units which are transmitted from one organism to its offspring.
• The characteristics of any individual is determined by the genes which it has inherited from its parents.
• In organisms reproducing by sexual reproduction, the offspring obtain genes from both the parents and hence develop characteristics which have high degree of variation as compared to its individual parent.
• In organisms reproducing by asexual reproduction, the offspring gets the exact copy of genes that was present in its parent. Hence, the variation in them is low.