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Because they have similar, but not identical, combination of genes.

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Q: With the exception of identical twins siblings who have the same two biological parents are likely to look similar but not identical to each other because they have?
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What is the exception of identical twins siblings who have the same two biological parents are likely to look similar but not identical to each other because they have?

a similar but not identical combination of genes.


Were all of Wilma Rudolph's siblings biological?

Yes, but some of them were half-siblings because her father married twice.


Why are enantiomers of biological interest?

Mainly because enantiomers have identical physical and chemical properties. However, the difference between two enantiomers can have tremendous impact, especially in biological systems, because many important biological molecules are chiral.


Why do siblings have similar physical characteristics?

Siblings look-a-like because they all have the same parents. Siblings don't look identical to their parents, they have variation in their characteristics. The same thing happens with plants and other organisms. Unless you have an identical twin. If you have an identical twin, you both have the exact same characteristics. The cell of identical twins makes an exact same copy with the cell. The process is called 'Embryo'.


Non-identical twins can be both boys both girls or boy and girl why?

because fraternal twins (non-identical) are just like any other siblings. Their genders have no connection with each other.


Can biological siblings get married if one was adopted and has a different surname on their birth certificate?

yes and no. Yes because you see, in the UK (I'm not sure about in America) you can legally marry an adopted sibling.But.....If one sibling is adopted then they are not biological siblings. This is because they would have different biological (birth) parents, so the adopted child would be that... adopted.So to cut a long story short, if you are in the UK yesTo cut it short NO you cannot marry a biological sibiling adopted or not, that is incest.


What are half-siblings' children to each other?

Children are half-siblings when they share only one biological parent.


Are Scourge Socks and Ruby Firestar's half siblings?

Yes, Scourge Socks and Ruby Firestar are half-siblings because they share one biological parent, but have different mothers.


Why do identical twins have the same genotype?

Identical twins have the same genotype because they have the exact same genes. Identical twins are formed when one fertilized egg (zygote) splits in two and each of the now two zygotes each develop into different beings. Identical twins are therefore referred to as monozyygotic twins and they have the same DNA.


Why do siblings have different fingerprints?

fingerprints are different in everyone no matter if related or not , Because they are determined by random events in the womb not DNA. So even identical twins should have different fingerprints.


Are sister-chromatides identical?

they're identical because they are the product of replication.


How are twins identical?

Twins are identical because they come from the same egg.