Study sets, textbooks, questions
Upgrade to remove ads
Human Development Test #2
Terms in this set (27)
the long, thin strands of genetic material located in the cell nucleus, are formed from chains of DNA molecules
sequence of DNA that codes for a protein and thus determines a trait
The full set of chromosomes that carries all the inheritable traits of an organism
the different forms of a gene
when both alleles are the same from each parent
when both alleles are different from each parent
the genetic information about a trait (the genetic information that encodes skin color, etc)
the observed characteristic of a trait (one's actual skin color)
if one allele is present, its characteristic is predominantly observed whether the other allele of the pair is the same or not
characteristics for which the allele is found on the sex chromosome
Caused by abnormalities in the number or structure of chromosomes.
guidance for prospective parents on the likelihood of genetic disorders in their future children
suggests that specific characteristics can be modified under various environmental conditions, and that some individuals are more responsive to the impact of the env't than others
A haploid cell such as an egg or sperm. Gametes unite during sexual reproduction to produce a diploid zygote.
the first phase of fetal development, when a single cell is formed from two gametes or when the sperm has fertilized the egg
in the second trimester when the reality of a growing life becomes more evident to the pregnant woman as she observes the changes in her body and experiences fetal movement
identical twins with the same sex that are formed when a single zygote divides into two with the same chromosomal composition
occur as a result of multiple ovulations in the same cycle. each egg develops separately in the uterus
sperm that have been donated and frozen are injected into a woman at the time of her ovulation.
Traditional methods are when sperm from an infertile woman's husband are injected into another woman during the time of her ovulation. Gestational methods are when the couple produce an embryo through IVF and the resulting embryo is injected into the other women.
In Vitro Fertilization
Eggs are removed from the ovary and placed in a petri dish inside an incubator. A few drops of sperm are then added to the dish. If the eggs divide, they are implanted in the uterus for development
First stage of the first trimester. After fertilization, the egg begins to divide. At this time the cell material is referred to as a zygote until implantation. When implantation is successful, the egg makes contact with the uterine lining and attaches. The cells are now referred to as an embryo.
The three weeks following implantation are devoted to elaboration of the supportive elements that will house the embryo (Second stage of the first trimester). Amniotic sac surrounds embryo, central nervous system begins to develop. By the end of the second month, the embryo looks quite human.
In the third month, it is now a fetus. The fetal heartbeat can be heard. Dramatic change takes place in the sex organs during this period
the developing human individual from the time of implantation to the end of the eighth week after conception
agents that can produce malformations in the fetus while the tissues and organs are forming. Have a wide variety of forms such as viruses, medicines, alcohol, and other drugs that a pregnant woman takes.
Sets with similar terms
HDFS 225 Chapter Three
Child Psych Study Guide: Ch 3
LSP Ch.2 Key Terms
Other sets by this creator
Human Development Chapter 10
Recommended textbook solutions
Myers' Psychology for AP
David G Myers
Spencer A. Rathus
Consumer Behavior: Buying, Having, Being
Michael R Solomon
Elliot Aronson, Robin M. Akert, Samuel R. Sommers, Timothy D. Wilson