Week 2: Chapters 3 and 4 Crossword

A deficiency in maternal levels of ______ acid during early pregnancy has been linked to a risk for neural tube disorders.
An infant born with AIDS will always have a compromised ______ system.
Spina ______ occurs when the neural tube fails to close and the spinal cord is not encased in the spinal column.
While Click and Clack are brothers and look somewhat alike, they have only about 50 percent of their genes in common. This would mean that Click and Clack are most likely ______ twins.
The belief that we inherit tried and true ways of adjusting to the environment from past generations is referred to as ______ evolution
about (spell out the number) ______-half of all fertilized ova are successfully implanted in teh uterus.
If a person needs one matching pair of benes in order to express a characteristic carried by a pair of genes, the characteristic is considered ______.
the formation of primitive heart would take place during the _____ period of development.
The time of rapid growth of an organ system is called its _____ period.
Identical twins occur when a fertilized ___ divides to form two separate, individual cells
The presence of _____ in vaccines containing thimerosal (a discontinued practice), led some parents to question whether there may be a link between being vaccinated and being autistic.
______ syndrome is associated with cognitive impairment as well as autism, and may not apparent until the affected child is age three years or older.
A child with fetal alcohol syndrome will most likely have a small head, widely spaced ______ and a flattened nose.
I am the hollow ball of cells formed in the days just after conception. Technically, I am referred to as the ______.
Infertility is defined as an inability to become pregnant after one ______ of trying.
The fact that type AB blood appears to be the result of a compromise between genes for type A and type B blood provides a good example of ______.
the outer layer of the embryo forms the ______ and chorion
Sickle-cell disease likely arose as a mutation that was passed along because it protected individuals from
Maria frequently used cocaine while she was pregnant. The most likely effect on her baby would be _______ stroke.
José is quite knowledgeable about ARTs. Thus, when he is informed that his friend's new baby was conceived in a laboratory dish, he knows that this process had to involve in vitro ______.
The typical outcome of a female reproductive cell that has undergone meiosis is one egg and three ______ cells.
rubella and syphilis cause heart problems and ______.
trisomy 21 is another name for a common form of ______ Syndrome.
A service that provides potential parents with information on the risk of a child of theirs being born with an inherited disorder is called _____ counseling.
Conception is defined as the moment when the ______ is fertilized by a sperm.
The term _____ refers to the actual characteristics a person exhibits.
what was once thought to be junk dna is now known to regulate activity of other
If green eyes are dominant and designated as "G" and gray eyes are recessive and designated as "g," probability would predict that if a couple each with a "Gg" eye color genotype had four children, _____ would have gray eyes.
The genetic endowment that most members of a particular species have in common is called ______ heredity.
In Kettlewell's research, the proportion of dark-colored moths increased as _____ increased.
The idea that some genes aid in adaptation more than others is known as ______ selection
Natalie is six weeks pregnant. At this point, the organism growing inside of her is most properly referred to as a(n)
Dominique is told that her unborn child has bones, distinguishable sex organs, and may be turning somersaults. This description indicates that Dominique's unborn child is best classified as a(n) ______.
A teratogen is best defined as any drug, disease, or environmental agent that causes a ______ defect
Rubella is also know as ______ measles.
tongue-curling is a(n) ______ trait.
the majority of the human genome consists of what was once thought to be "_____" dna
the odds of having a child with down syndrome increase maternal ______.
color blindness and hemophilia are examples of ___-linked inheritance
The lining of the _____ originates as tissue called the chorion.
The seventh month of a human pregnancy would fall in the _____ trimester of that pregnancy.
Most cells of a typical make contain one X and one ______ chromosome.
The main danger of postnatal lead exposure is ______ impairment.