EVOLUTION
SOURCES OF VARIATION IN A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Their parents choose their features and make sure they look similar to themselves.
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The offspring adapt to their surroundings making them look more like their parents
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Offspring receive characteristics that have been passed down from their parents
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Detailed explanation-1: -This is because the two parents share one or more common ancestors and so carry some of the same genetic material.
Detailed explanation-2: -We look like our parents because the way we grow and develop is determined by genes. Genes are present on the chromosomes which we receive from our parents in the egg and sperm. The characteristics of individual human beings are passed from one generation to the next in their chromosomes.
Detailed explanation-3: -The answer has to do with the fact that each parent actually has two different sets of genes. And that each parent passes only half of their genes to their child. And that the half that gets passed down is random. All of this together ensures that each child ends up with a different, unique set of genes.
Detailed explanation-4: -Heredity, which is also known as inheritance or biological inheritance, is the passing of traits from parents to their offspring.
Detailed explanation-5: -Because offspring inherit their genes from their biological mother and father, they have a unique combination of their parents’ characteristics. Sexual reproduction plays a really important role in genetic inheritance. A typical human body cell has 46 chromosomes in its nucleus, consisting of 23 chromosome pairs.