QUESTIONS and ANSWERS
QUESTIONS and ANSWERS PART II For each of the following questions, choose the one best answer. 1. What are genes? a. Long strands of deoxyribonucleic acid (DNA) b. The sequences…
Influences on Prenatal Development
Influences on Prenatal Development QUICK LOOK AT THE CHAPTER AHEAD Teratogens are extrauterine agents that cause structural abnormalities in the embryo or fetus. Types of teratogens include chemicals (alcohol), maternal…
Genetic Disorders
Genetic Disorders QUICK LOOK AT THE CHAPTER AHEAD A genetic disease is caused by abnormalities in an individual’s genetic material (genome). There are four different types of genetic disorders: (1)…
The Human Genome Project
The Human Genome Project QUICK LOOK AT THE CHAPTER AHEAD The Human Genome Project occurred from 1990 to 2003. A “rough draft” of the human genome was announced in 2000….
Assisted Reproductive Techniques
Assisted Reproductive Techniques QUICK LOOK AT THE CHAPTER AHEAD Assisted reproductive technology (ART) is an option for couples who are unable to conceive naturally. Sperm donation occurs when male sperm…
Conception to Birth
Conception to Birth QUICK LOOK AT THE CHAPTER AHEAD The first 2 weeks are the germinal period. For the first 8 weeks, the new organism is called an embryo. Organogenesis…
Infertility
Infertility QUICK LOOK AT THE CHAPTER AHEAD Infertility is the inability to conceive after 1 year of trying when the female is under 35 and 6 months when the female…
Fertilization in Utero
Fertilization in Utero QUICK LOOK AT THE CHAPTER AHEAD Germ cells (gametes) divide through meiosis, forming haploid cells. Somatic cells divide through mitosis, forming diploid cells. Diploid cells have 46…
Genes, Chromosomes, and DNA
Genes, Chromosomes, and DNA QUICK LOOK AT THE CHAPTER AHEAD The flow of genetic information in normal cells is from DNA to RNA to protein. The double helix is the…
