ANIMAL REPRODUCTION AND DEVELOPMENT
ASEXUAL REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Siblings get different amounts of genes from their mother or father making them different.
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Each sibling has a mutation that causes them to have different traits.
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Siblings use their environment and experiences to determine their traits.
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Offspring inherit different combinations of gene versions from parents.
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Detailed explanation-1: -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-2: -Because of recombination, siblings only share about 50 percent of the same DNA, on average, Dennis says. So while biological siblings have the same family tree, their genetic code might be different in at least one of the areas looked at in a given test. That’s true even for fraternal twins.
Detailed explanation-3: -Scientists find similar and different genes in siblings, often even on the same chromosome. This mix-up is possible because of a biological mechanism called chromosomal crossover. Chromosomal crossover happens when a diploid cell divides into four cells to make sperm or egg cells.
Detailed explanation-4: -Each offspring receives two copies of each gene, one from each parent. Each offspring can inherit a different combination of gene versions, so siblings can have different traits from each other and from their parents.
Detailed explanation-5: -Q: Why are siblings so different? First of all, genetics can account for sibling differences. Siblings usually only share 50 percent of the DNA passed down from their parents. Second of all, even if siblings attend the same school, they may hang out in different crowds, which in turn influences their personality.