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Exam 2: Biological Beginnings

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Question 61

Multiple Choice

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_____ is the field that seeks to discover the influence of heredity and environment on individual differences in human traits and development.

A) Behavior influence
B) Behavior therapy
C) Behavior genetics
D) Behavior development

E) All of the above
F) B) and C)

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Question 62

Multiple Choice

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Tristan has a genetic disorder that results from an abnormality in the X chromosome, which becomes constricted and often breaks. His doctor told Tristan's mother that he has:

A) Fragile X syndrome.
B) XYY syndrome.
C) Turner syndrome.
D) Tay-Sach's disease.

E) B) and C)
F) All of the above

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Question 63

Multiple Choice

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Malorie was born during her mother's 32nd week of pregnancy. Malorie would be termed a _____ baby.

_____ are the building blocks of cells as well as the regulators that direct the body's processes.

Which maternal age group has increased risk of low birth weight, preterm delivery, and fetal death?

_____ mainly focuses on the isolation and examination of fetal cells circulating in the mother's blood and analysis of cell-free fetal DNA in maternal plasma.

Jason was born with _____. The doctor tells his parents that this genetic disorder occurred because he has an extra copy of chromosome 21.

The structure that contains two arteries and one vein, and connects the developing embryo to the mother's body, is called the _____.

A cell which contains 12 pairs of chromosomes, divides by mitosis to form two new cells. How many pairs of chromosomes does each new cell contain?

Petra is at the fourth month of her pregnancy. Her unborn child is now referred to as a _____.

_____, the units of hereditary information, are short segments of DNA. They direct cells to reproduce themselves and to assemble proteins.

Esperanza is having a prenatal test to remove a small sample of the placenta for genetic testing. Identify the test that her doctor is performing.

Pilar is using non-medical techniques for pain management during labor; she has someone insert fine needles into specific locations of her body. She is most likely using _____.

Rachel is in the first period of prenatal development. Even though she doesn't know it, she is in the _____ stage of prenatal development.

List five gene-linked abnormalities.

_____ is the shortest of the three birth stages.

Cell division in the eggs and sperms. A cell duplicates its chromosomes and divides twice. This leads to the formation of four cells that contain only half of the genetic material of the parent cell.

A recessive gene exerts its influence only if:

Erin is 90 years old. She has relatively good health, and is fully mobile. Most of Erin's blood relatives to live to a ripe, old age. Which of the following genes might be responsible for this?

Short segments of DNA which are located on the chromosomes. These are considered to be the basic units of hereditary information.