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Human Development Through Lifespan Chapter 2
Terms in this set (26)
What "tells" developing body parts when/how to develop?
establishing, relating to, or deriving from a standard or norm, especially of behavior
If something doesn't happen, it is an oddity
What is a zygote?
One cell formed by fusion of the two gametes
What are genes?
Basic units of genetic information
What are monozygotic twins?
What are dizygotic twins?
non-identical twins: no more genetically similar than 2 siblings
The chances of having multiple births rise when....
1. Couples use fertility drugs
2. Woman are older
inheritance in which a combination of multiple gene pairs is responsible for the production of a particular trait
most recent approach to the study of effects of heredity on behavior and psychological characteristics
What is spontaneous mutation?
genes spontaneously change their form
What is genetic counseling?
Focuses on helping people deal with issues related to inherited disorders
What is a karyotype?
the number and visual appearance of the chromosomes in the cell nuclei of an organism or species
What data can you use to determine whether you have a genetic disorder?
1. Thorough family history
2. Age of mother and father
3. Physical examination
4. Blood, skin, and wise samples to examine specific chromosomes
What is ultrasound sonography?
high-frequency sound waves scan the mother's womb to produce an image of the unborn baby
What is chorionic villus sampling (CVS)
test to find genetic defects; involves taking samples of hair-like material that surrounds the embryo
What is temperament?
patterns of arousal and emotionality that are consistent and enduring characteristics of an individual
What is a multifactorial trait?
the determination of traits by a combination of both genetic and environmental factors in which a genetic and environmental factors in which a genotype provides a range within which a phenotype may be expressed
What is fertilization?
The process by which a sperm and an ovum join to form a single new cell
What are the three stages of the prenatal period?
1. Germinal Stage
2. Embryonic Stage
3. Fetal Stage
What is infertility?
the inability to conceive after 12 to 18 months of trying to become pregnant
What can cause infertility?
1. The age of the parents
2. Men who produce too few sperm
3. Use of illicit drugs or cigarettes
4. previous STDs
5. Women who fail to release eggs during ovulation
What is a teratogen?
an environmental aspect such as a virus, chemical or other factor that produces a birth defect
What is a miscarriage?
Occurs when pregnancy ends before the developing child is able to survive outside the womb
What is an abortion
voluntary termination of pregnancy
What can threaten child devleopment?
1. Mother's Diet
2. Mother's Health
THIS SET IS OFTEN IN FOLDERS WITH...
Human Development Through Lifespan Chapter 18
Human Development Through Lifespan Chapter 19
Human Development Through Lifespan Chapter 1
Human Development Through Lifespan Chapter 3
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