Exam 2: Biological Foundations

What do we call the cluster of cells in the centre of the zygote that will eventually develop into the body?

What do we call the threadlike structures in the nucleus of a cell that contain genetic material?

Which of the following comparisons can be used to complete the phrase, "Homozygous is to heterozygous as"?

Claire is very concerned about the position of the child she is carrying. Which technique would be the best for determining whether Claire's concerns are warranted?

What has research on prenatal exposure to cell phone usage found?

In congenital adrenal hyperplasia, the fetal adrenal glands have produced too much androgen. What is the effect upon the child with this condition?

Which combination of sex-chromosomes is unrealistic in a living human being?

What factor would play the largest role in determining the initial reaction range for any behaviour?

Which maternal characteristic is most strongly associated with giving birth to a baby with Down syndrome?

If tallness is dominant and designated as "T," and shortness is recessive and designated as "s," who would likely be short?

Genes provide the cell with a specific set of instructions. What kind of instructions are they?

Jewel and Bjork are dizygotic twins. What does dizygotic mean?

Gregg and Gracie were relaxing while watching TV, when suddenly their fetus began to kick for the first time. At approximately what age does a fetus begin to kick, punch, or turn somersaults?

Your friend's baby, Kayla, has been diagnosed with a disorder with which she is lacking an important liver enzyme. This enzyme has the potential to delay Kayla's cognitive development. What is this disorder?

While observing a special monitor, a physician tells an expectant mother, "As you can see, the legs and arms have just begun to emerge." From this description, what are they looking at?

Which term describes the functional units of heredity?

Kim Lee has a disorder associated with the sex-chromosomes in which she has a normal physical appearance, but her motor and language development is delayed. What condition does Kim Lee have?

What is the cut-off between normal and low birth weight?

Huntington's disease is an unusual genetic disorder. What happens with the dominant alleles in a person with this fatal disease?

Ian is approached by a mad scientist who says he will pay Ian either $100 for each pair of his autosomes or $500 for each pair of his sex chromosomes. Assuming Ian wants to make as much money as possible, which offer should he take?