The probability that an individual heterozygous for a cleft chin and an individual homozygous for a chin without a cleft will produce offspring that are homozygous recessive for a chin without a cleft is fifty percent. You can calculate this by making a Punnet square.
no
Since Down Syndrome is not genetic and is a trisomy, dominant and recessive genes do not play a role and it is possible for two down syndrome parents to have a child without down syndrome.
Out of the 4 possible offspring outcomes, 2 of the offspring will have cleft chins. Two won't have cleft chins. The ratio is 1:1.
no
The likelihood of an individual with down syndrome to conceive a child is extremely rare. There is infertility among both males and females with Down syndrome; males are usually unable to father children, while females demonstrate significantly lower rates of conception relative to unaffected individuals. Women with DS are less fertile and often have difficulties with miscarriage, premature birth and difficult labor. Without implantation genetic diagnosis. approximately half of the offspring of someone with Down syndrome also have the syndrome themselves. Men with DS are almost uniformly infertile,, exhibiting defects in spermatogenesis. There have been only three recorded instances of males with Down syndrome fathering children
All Girls will be carriers of Hemophilia. All Boys will be unaffected (they won't have Hemophilia).
An individual with Down Syndrome has the presence of all or part of an extra 21st chromosome.
Kid
There is no widely recognized medical condition called "Eisenhower syndrome." It is possible that you may be referring to "Ehlers-Danlos syndrome," which is a group of genetic disorders that affect the connective tissues in the body. However, without further context or information, it is difficult to provide a more accurate explanation.
They cant exercise as vigorously as someone without Marfan syndrome
Yes, a girl with Down syndrome can have a boyfriend, and many do. People with Down syndrome have the same relationship needs as people without Down syndrome.