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No, unless they are Identical Twins.

Normal siblings will on average share 50 percent of their genetic material, since they get half of their chromosomes from their mother and half from their father.

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17y ago

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If my cousin and i are from first brothers would we share the same DNA?

Cousins would share up to 50% of the DNA.


When brothers marry sisters how close will they children's DNA be?

When brothers marry sisters their children's DNA will be closer that that of regular first cousins, but not as close as that of siblings.


Would half sisters have the same DNA?

Half-sisters share only one biological parent, so they would share about 25% of their DNA, specifically from that shared parent. They would not have identical DNA, as each inherits a unique combination of genes from their parents.


Would two brothers have the simIlar dna?

It is very unlikely that two brothers would have babies with the same DNA. That could only happen if identical twin brothers married identical twin sisters, and even then the mixing of DNA during reproduction makes this an extremely unlikely outcome.


Can two brothers with same genotype and blood group share the same DNA lab test?

Only identical twins from the splitting of the single ovum ( monozygotic) have identical DNA


Do half siblings share the same DNA?

No, half siblings do not share the same DNA. They share only one biological parent, so they have some genetic similarities but also differences in their DNA.


Do brothers have the same x chromosome or asked another way can DNA determine between two brothers the real father of a daughter?

Brothers do not share the same X chromosome. Therefore, DNA analysis can determine the father of a daughter between two brothers with high accuracy by comparing the genetic markers on the child's DNA with the potential fathers'. This is done through paternity testing which looks at specific genetic markers to confirm biological relationships.


You share 99.8 percent of your DNA with Ronald Reagan how much of your DNA do you share with bonzo his chimp co-star?

Humans and chimpanzees share about 98% of the same DNA. So, you would share roughly the same amount of DNA with Bonzo, the chimp co-star of Ronald Reagan.


If my cousin and I have the same grandfather do we share the same DNA?

Some of your DNA will be the same! You are likely to have somewhere between 1/8th and 1/16th of the same DNA.


Would brothers and sisters that have a DNA test have the same national heritages?

Brothers and sisters typically share a significant portion of their DNA, usually around 50%, which often reflects similar national heritages. However, variations can occur due to the random assortment of genes inherited from their parents, and if the parents have diverse backgrounds, this can lead to differences in specific ancestry percentages. Additionally, the way national heritage is defined and analyzed in DNA tests can vary, potentially revealing different results for siblings. Overall, while siblings generally have similar heritages, individual DNA test results may show some variation.


How many brothers and sisters did King Tutankhamun have in all?

Six sisters, all older, but we don't know the names of all of them :(. We know they are his sisters via DNA analysis conducted in 2010.


Do monkeys have human DNA?

No, monkeys do not have human DNA. While humans and monkeys share a common ancestor, their DNA is not the same.