child

Trisomy

...perm from the other parent during conception, the child has 46 chromosomes . Full article >>> Trisomy 18 is therefore caused by a genetic abnormality occurring before conception, when egg and sperm cells are made. Full article >>> Trisomy The term proposed by Blakesl...

Triplet repeat expansion

...It may occur because a parent is a mosaic, and the child has the full mutation in all cells . Triplet repeat expansion may demonstrate anticipation when the number of repeats increases with each generation. Full article >>>...

Screening

...r having a specific genetic dis order or having a child with the dis order . Source: Jenkins, John B. 1990. Human Genetics , 2nd Edition. New York: Harper & Row ... Full article >>> The process of screening for mutation s showing abnormalities in a certain structure or in a partic...

Repeats

...It may occur because a parent is a mosaic, and the child has the full mutation in all cells . Triplet repeat expansion may demonstrate anticipation when the number of repeats increases with each generation. Full article >>> The number of repeats varies between individuals and is use...

Reduction

...ly refused and Virginia continued her career as a child actress elsewhere. Full article >>> So, in population s that undergo a bottleneck (a severe reduction in numbers), the sample of alleles going to the next generation is a small sample of the population gene pool . Full article...

Placenta

...62;> placenta Structure by which an unborn child or animal is attached to its mother's uterine wall and through which it is nourished. placid Plates on Kinorhyncha. Full article >>> : Placenta l mammals . A sub class of the Class Mammalia (others are monotremes and marsupi...

Paternity test

... fragments. (1) Father. (2) Child. (3) Mother. The child has inherited some, but not all of the fingerprint of each of its parents, giving it a new, unique fingerprint. Full article >>> [35] The only circumstance in which paternity test s involving genetic ana lysis would fall outside of t...

Offspring

...duction; generation. 2. That which is produced; a child or children; a descendant or descendants, however remote from the stock. To the gods alone ... Full article >>> Offspring generation. F1 is the first offspring or filial generation ; F2 is the second; and so on. Full article >...

Infertility

...ertility is the inability to naturally conceive a child or the inability to carry a pregnancy to term. There are many reasons why a couple may not be able to conceive, or may not be able to conceive without medical assistance. Full article >>> Infertility is the inability to naturally con...

Hereditary

...It may occur because a parent is a mosaic, and the child has the full mutation in all cells . Full article >>> Evolution is a change in the gene pool of a population over time. A gene is a hereditary unit that can be passed on unaltered for many generations. The gene pool is...

Genetic screen

...r having a specific genetic dis order or having a child with the dis order . Source: Jenkins, John B. 1990. Human Genetics , 2nd Edition. New York: Harper & Row ... Full article >>> Barbara Biesecker, M.S., of the National Human Genome Research Institute's Medical Genetics Bran...

Dominant gene

... gene that dominates its normal counterpart, each child in the family has a 50% chance of inheriting the disease-causing gene and the dis order . Full article >>> Dominant gene . A gene whose phenotype is when it is present in a single copy. Dominant (- actin g) oncogene . A gen...

Dominant

... gene that dominates its normal counterpart, each child in the family has a 50% chance of inheriting the disease-causing gene and the dis order . Full article >>> autosome , dominant , gene , Huntington's disease, neurofibromatosis, inherited, Mendelian inheritance , phenotype [ S...

Cranium

...cranium , initially separate, fuse together as the child approaches adulthood. Full article >>> because smaller — and thus weaker — jaw muscle s would exert less force on their bony attachment (the cranium ), ... Full article >>> parietal Bone of the cranium or...

Carrier

...ected by the disease, two carrier s can produce a child who has the disease. explained: ... Full article >>> carrier : A person who has one copy of the gene mutation for a recessive dis order . Carrier s are not affected by the dis order . However, they can pass on the mutated gene...

Abdomen

...iscoloration of the hair and depigmented skin. The child has a miserable appearance with a "bull-dog" facies. Full article >>> The adults are "yellowish, with dark crossbands on abdomen ; the feathered arista is character istic of the family . Full article >>> A congenital ...