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How does the genetic makeup of fraternal and identical twins differ?
Wiki User
∙ 10y ago
how does the genetic makeup of a fraternal and identical differ
Wiki User
∙ 10y ago
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Why can fraternal twins de different sexes while identical twins cannot?
To keep it simple and not get too technical, fraternal twins are from two eggs and two sperm that independently combine to produce a baby. Identical twins come from a single egg and sperm that divide to create two separate children. Gender is controlled by the males sperm and whether it contains the male genetic X chromosome. Since identical twins have the same sperm their genetic makeup is exactly the same (same egg and sperm used in development). Fraternal twins have two separate sperm and therefore it is possible one has the X chromosome and other does not.
What percent of genetic makeup is shared by identical twins?
100%Identical twins develop from the same egg, so have the same DNA. The only thing different between identical twins is finger prints, and retinal patterns.
Is gentic makeup probability?
There is no such thing as "gentic makeup". Perhaps you mean genetic, instead. There is a probabilistic element in genetic make up, but in some cases the probabilistic bit is overridden by recessive genes.
If both of a child's parents have a widow's peak will that child genetically inherit the widow's peak?
its likely but might not the chances of the shild not having a widows peak are 1/16 you can better know these odds if you know the parents genotype or genetic makeup.
What can you do in 4 minutes?
do your makeup
Is the genetic makeup of daughter cells unique or identical to other cells in the organism during mitosis?
the genetic makeup SHOULD be identical. some mutations can occur so they are not completely identical but these mutations are soo minute that they are often disregarded.
Why can fraternal twins de different sexes while identical twins cannot?
To keep it simple and not get too technical, fraternal twins are from two eggs and two sperm that independently combine to produce a baby. Identical twins come from a single egg and sperm that divide to create two separate children. Gender is controlled by the males sperm and whether it contains the male genetic X chromosome. Since identical twins have the same sperm their genetic makeup is exactly the same (same egg and sperm used in development). Fraternal twins have two separate sperm and therefore it is possible one has the X chromosome and other does not.
If two animals have the same genes then are they the same family order class phylum and kingdom?
If their genetic makeup is identical then they are identical twins.
Are the genetic makeup the same for first cousins and siblings?
No. Except for identical twins, the genetic makeup of each person is different. However, the more closely related you are to someone, the more similar your genetic makeup. So the genetics of siblings is more similar than of first cousins.
How does heredity influence personality?
Determining the amount of genetic influence that contributes to the makeup of personality has proved to be a difficult task. However, in studying both fraternal and identical twins, we're able to gain some insight into this mystery. After a series of tests, studies have shown that identical adult twins were more likely to answer questions in the same way than fraternal twins were. In subsequent studies, identical twins who were separated for long periods of time compared to those who weren't separated continued to exhibit the same level of personality traits.
Are the starfish and its offspring genetically identical?
Yes, they are genetically identical because starfish reproduce asexually, and therefore the genetic makeup of each one doesn't change.
Is the DNA between brothers different?
Generally, each person has his or her own genetic makeup. Identical twins can have a very similar DNA>
What percent of genetic makeup is shared by identical twins?
100%Identical twins develop from the same egg, so have the same DNA. The only thing different between identical twins is finger prints, and retinal patterns.
An organism's genetic makeup or allele combinations?
an organism's genetic makeup, or allele
What appearance of an individual due to its genetic makeup?
The observable trait that appears in an organism as a result of its genetic makeup is called a phenotype. Its underlying genetic makeup is referred to as the genotype.
What is the difference between identical and flaternal twins?
Fraternal twins come from the fertilization of two different eggs. It can cause them to look almost the same, but they could just as easily be totally different, even different genders. Identical twins come from the splitting of only one fertilized egg, making them look exactly the same and they will always be the same gender.
After a cell undergoes mitosis how are the two new cells alike?
the two cells are alike because the mother cell had 2 pairs of each strand of DNA for the two daughter cells. Each daughter cell has the same DNA to carry on the species and to preform mitosis again.
