HMG final chapter 2

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The threadlike structures in the nucleus of a cell that contain genetic material are called

A. chromosones

Human DNA is composed of a total of__ different nucleotide bases

A. 4

Genes provide the cell with a specific set of ___ instructions

B. biochemical

The average child has approximately __ genes

B. 30,000

Which is an example of your genotype?

A. Your complets set of genes

Linda has one allele for curly hair and another for straight hair. Linda's alleles are

D. heterzygous

Which statement concerning the sickle cell trait is true?

B. Individuals with the trait have both a dominant and recessive allelefor the disorder

____is Characterized by progressive degeneration of the nervous system.

A. Huntington's Disease

Which physical characteristic is most indicative of an individual with down sydrome?

B. fold of skin over the eyelid

Because of his accurate knowledge of genetics and disorders, Benson knows that his newborn son has no chance of having

A. Turner's syndrome

Jose, who was adopted at birth, is found to have personality characteristics more similar to his biological mom than to his adoptive mom. How should you interpret this data?

C. Personality charateristics are influenced by genes.

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

C. genetics

Genes and environments

A. Interact dynamically throughout development

___occurs when an individual intentionally seeks out an environmentthat matches characteristics driven by their genes

C. Niche-picking

JAck and Jill are twins, Because he is a boy, Jack's dad and mom encourage him to run. On the other hand, Jack's mom and dad discourage Jill from engaging in athletic activity. As a result, Jack is much fater at running up a hill than Jill. The difference in Jack and Jill's behavior is best explained by

A. Non shared environmental influences

Which statement is true?

A. environmental influences within a family typically make children within a family differet

Which is NOT considered part of prenatal development

C. neonatal period

Prenatal development begins

C. at conception

Which statement concerning in vitro fertilization is false?

B. About 90% of in vitro fertilization attempts are successful

Whose behavior best exemplifies eugenics

B. Dr. Jane, who allows only certain individuals to mate in an effort to build a master race.

The point at which a zygote burrows into the uterine wall is referred to as

B. Implantation

I am the structure through which a mom and an embryo exchange waste and nutrients. I am called the

D. Placenta

At five weeks after conception, a developing human is most accurately called a(n)

A. embryo

The sac in which the embryo resides is called the

B. amnion

The ____ houses the blood vessels that join the embryo and its mother

A. umbilical cord

The thick, greasy substance that covers the fetus around 5 to 6 months after conception is called

B. Vernix

Currently, the earliest "age of viability" occurs around ___ weeks after conception

B. 22

Just after the birth of her son Nelly, mom Kelly was informed that little Nelly's neural tube did not properly close during his prenatal development. This would mean that Nelly will be diagnosed with

A. Spina Bifida

What effets is not associated with fetal alcohol syndrome?

C. Blindness

Both AIDS and genital herpes

A. can be passed along to an infant as they pass through the birth canal.

As there is a history of hereditary disease in the families of Archie and Veronica, they have arranged a meeting with a specialist at which a family tree concerning the odds of them having a child with a birth defect will be constructed. This event woud most accurately be described as

D. Genetic counseling

Regan is a medical student who is learning a procedure in which a long needle is inserted into the abdomen of a pregnant woman. What technique is he most likely learning?

B. amniocentesis

Physicians are currently able to correct spina bifida at around seven to eight months before birth using

B. Fetal Surgery

The process in which defective cells in the body are replaced with cells that have had the genetic defect "repaired" is called

B. genetic engineering

postpartum depression

D. may be reduced via breast feeding

How is a physician most likely to guard against fetal hyproxia?

A. monitor the fetus' heart rate

A C-section is best thought of as

D. the surgical removal of a fetus

By definition, premature infants are born prior to __ weeks after conception

D. 36

Jamal was born 34 weeks after he was conceived and weighed 6 lbs. Jamal is best described as

B. preterm and normal birthweight

Infant mortality rate is defined as the percentage of infants who die

C. before their first birthday

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