LIFE SCIENCE

Detailed explanation-1: -Characteristics that are passed down from parents to children exhibit both resemblance and variety. They are related because half of the chromosome is inherited from the father and half from the mother. They differ because of genetic recombination, mutation, and natural selection.

Detailed explanation-2: -During reproduction, the 23 chromosomes in the mother’s egg and the 23 chromosomes in the father’s sperm combine. This results in a baby with an entire set of 46 chromosomes who shares exactly half its genes with its mother and half its genes with its father!

Detailed explanation-3: -Heredity – the passing of traits from parents to offspring.

Detailed explanation-4: -Heritability, defined as a measure of family resemblance, causes traits to be genetically passed from parents to offspring (heredity), allowing evolutionarily advantageous traits to persist through generations.