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Identical twins are rare because it's really hard to get the same exact genes and look the same height and same face.

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Identical twins wins have the same genes and look exactly the same and fraternal twins are born at the same time but look nothing alike

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Twins are rare because not a lot of people have exactly the same genes because mostly people get more genes from dad than mom or mom than dad .

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indentical twins look the same but fraternal twins are born at the same time but don't look the same.

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Aren't twins diffrent by personalities? and thoughts??

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unlike identical twins fraternal twins have different traits like if they have different eye color and height and can be even different sexes.

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some twins might not look the same,because of their other eye color or hair color that comes from different family members passing down traits.....?

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what was the first dino

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ok there rare because they have exactly the same gene which is almost impossible and most people have diffrent genes from mother and father right?

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twins are rare because it is not easy to get the same exact genes from your siblings

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if you have a fraternal twin that means you have some traits the same . but if you have a identical twin that means you have the same genes.

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identical twins are twins that look the same and have the same face as you

fraternal twins are twins that at born at the same time but don't look the same and have different faces

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Identical twins looks exactly the same and Fraternal twins have different twins

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Why are genes so important for us.

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Twins are rare because they look alike and they have the same genes by their parents

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we pass our genes down by inheriting them and by sexual reproduction.

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If you are an identical twin , your genes are mostly the same as your twin .

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Identical twins are identical because their genes are the same

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well franternal twins are twins exept they're diffrent by uh well if there male or female right and maybe also their protein..? and identical twins have the same genes and the same proteins and maybe be the same ( boy or girl) if im not wrong >.<

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Genes are passed down from parents or family members by sexual reproduction

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twins are rare because they have to get the same genes

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Genes are passed down by sexual reprodution

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fraternal twins have different traits.they may have different eye colors and different heights but identical twins have the same eye colors and look the exact same

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twins are rare because in order to make twins an embryo needs to split in two to make two developing babies

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We inherit our genes from our biological parents.Each parent has a complete set of genes

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twins are rare because it is hard to get all the genes that your brother or sister gets.

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genes often passed down by our family or parents.

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Fraternal: The difference between fraternal twins and identical twins has to do with fertilization. In The cells of these two twins inherit completely different combinations of genes from the parents Because they inherited different genes the fraternal twins will have different protein

identical Twins: fertilization happens only once. A cell from the father combines with an egg cell from the mother to form a cell. Then this single cell copies itself and splits and forming two identical twins

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Identical means “exactly the same.

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identical twins look the same but fraternal twins are born at the same time but don't look the same

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genes get pass down by sexual reproduction

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Genes get pass down by our parents trough a procees so we have the same proteins.

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We pass our genes down by inheriting them and by sexual reproduction .

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they are passed down by sexual reprodution.

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genes get passed by family members

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our genes are passed down by sexual reproduction.

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fraternal twins are two people that were just born from the same mother at the same time but identical twins have the same genes and look exactly alike

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if we have an identical twin are genes that got passed down that means we got most of the same genes in our body.

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Well because they have the same proteins, and they have the same proteins because their genes are the same either from the father or mother..

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Our genes are passed down by our parent's through the process of sexual reproduction

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genes are passed down by family members with different traits

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our genes are passed down to us from our parents sexual reproduction

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We inherit our genes from our dad or mom through the process of sexual reproduction. Each parent has a complete set of genes. Genes are organized on matching pairs of chromosomes. Each chromosome pair has two copies of each gene. and some genes can be the same but sometimes they are different

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they pass it down by different combinations of traits like their family members ...?

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they are inherited from both parents when two cells combine and create a full cell that develops into us

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Genes are passed down from our parents through reproduction.

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Genes are passed by our dad or moms because when we are in our mom stomach or when our parents make us they pass it down to us.

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Genes instruct for proteins, which determine our traits. by there perents