Topic: Fertilization. Topic: Mitosis. Which of the following is TRUE of mitosis in humans? Mitosis is the cellular reproduction that occurs in the sperm and egg cells. Mitosis results in the formation of four new cells. Mitosis results in the formation of new cells with 23 pairs of chromosomes. Mitosis results in the formation of three new cells. 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? During , a cell of the testes in men or ovaries in women duplicates its chromosomes and then divides twice, thus forming four cells, each of which has only half the genetic material of the parent cell. Topic: Meiosis. During fertilization, an egg and a sperm fuse to create a single cell called a: A. A mistake by the cellular machinery, or damage from an environmental agent such as radiation, may produce a , which is a permanently altered segment of DNA.
Topic: Sources of Variability. Susceptibility B. Longevity C. Vulnerability D. Ethel is 50 years old but appears much more aged in appearance. Which of the following genes are responsible for the accelerated aging that is observed in Ethel and her family members? Susceptibility genes B. Longevity genes C. Vulnerability genes D. Mutated genes. Erin is 90 years old. She has relatively good health and is fully mobile.
Which of the following genes might be responsible for this? Emma and Anna are identical twins who were adopted by different families a few weeks after birth.
Although genetically identical, they grew up with different physical and psychological characteristics. For example, though both inherited a tendency to grow large, Anna was slim and athletic due to the active lifestyle practiced in her adoptive family. This variability can be explained by how: A. RNA B. DNA C. Phenotype D. Marly describes her friend, Gina, as having blonde hair, green eyes, and fair skin with freckles. X-linked inheritance. In some cases, one gene of a pair always exerts its effects, overriding the potential influence of the other gene.
This is the principle. Topic: Dominant-Recessive Genes. According to the dominant-recessive gene principle, which of the following phenotypes is most likely to be observed in Clark?
Black eyes B. Blue eyes C. Grey eyes D. Brown eyes. Mary has a gene for brown hair and a gene for blonde hair. She has brown hair. This indicates that the gene for brown hair is a: A. However, Carrie gets genes for blonde hair from both parents, and as a result she has blonde hair.
This indicates that the gene for blonde hair is a: A. A recessive gene exerts its influence only if: A. When a mutated gene is carried on the X chromosome, the result is called: A. Y-linked inheritance. Topic: Sex-Linked Genes. Males B. Females C. Both males and females D. Neither males nor females. Alcoholism B. Asthma C. Arthritis D. Social referencing.
Topic: Polygenic Inheritance. Which of the following is an example of chromosomal abnormality that occurs when whole chromosomes do not separate properly during meiosis? Down syndrome B. Hemophilia C. Sickle-cell anemia. Topic: Down Syndrome. Jason was born with. The doctor tells his parents that this genetic disorder occurred because he has an extra copy of chromosome Fragile X syndrome B.
Klinefelter disease C. Down syndrome D. Tay-Sachs disease. It primarily occurs in African-American children. It occurs when genetic imprinting goes awry. Its symptoms include retardation of motor and mental abilities. It is caused by the presence of an extra copy of chromosome Y. Which of the following women has the highest probability of giving birth to a child with Down syndrome?
Sarah, a year-old Asian woman B. Jane, a year-old Euro-American woman C. Ella, a year-old African-American woman D. Destiny, a year-old African-American woman. Klinefelter syndrome affects: A. Topic: Sex-Linked Chromosomal Abnormalities. Tristan has a genetic disorder that results from an abnormality in the X chromosome, which becomes constricted and often breaks.
Fragile X syndrome. XYY syndrome. Turner syndrome. Angelique has a chromosomal disorder characterized by a missing X chromosome, making her XO instead of XX. Klinefelter syndrome. Turner syndrome occurs exclusively in: A. Which of the following is TRUE of phenylketonuria?
It results from a recessive gene. It is a chromosomal disorder. It results in death by 5 years of age. It is caused by an accumulation of lipids in the nervous system. Topic: Gene-Linked Chromosomal Abnormalities. Which of the following is a gene-linked abnormality? Phenylketonuria PKU C. Turner syndrome D. Tamera has a genetic disorder where her red blood cells take on a hook shape instead of the normal disk shape.
Tay-Sachs disease B. Paul suffers from hemophilia. Insulin B. Physical therapy D. Corrective surgery at birth. Their physician has explained that this gene-linked abnormality could be treated with corrective surgery at birth, orthopedic devices, and physical or medical therapy. Tay-Sachs disease C. PKU D. She is receiving insulin treatment. Lindsay has: A. This genetic disorder can be treated through penicillin, pain medication, antibiotics, and blood transfusions, and his doctor has indicated that a study named Baby HUG may offer a better drug in the future.
Benny has been diagnosed with a gene-linked abnormality characterized by deceleration of mental and physical development caused by an accumulation of lipids in the nervous system. He has been put on medication and a special diet, but his family has been told that he will probably not live beyond the age of 5. Benny is suffering from: A. Behavior influence B. Behavior therapy C. Behavior genetics D. Behavior development. Topic: Behavior Genetics.
Rachel loves to read books and also encourages her daughter to read by regularly taking her to the local library and buying her lots of books. This reflects a n correlation. Topic: Passive Genotype-Environment Correlations. Since she was a child, they took her to numerous baseball and football games, and Tracy regularly watched the sports channel with her dad.
When she was old enough, her parents made her join the little league team at her school and she performed well. This is an example of a n : A. Passive genotype-environment B.
Evocative genotype-environment C. Influential genotype-environment D. Active niche-picking genotype-environment. Topic: Evocative Genotype-Environment Correlations. Charlie is a cooperative, attentive child who is a favorite at home and school and receives positive, instructive responses from adults.
This is indicative of a n : A. Timothy is a quiet 6-year-old who is usually withdrawn in class. As a result, he does not receive much attention from his peers and mostly plays by himself. According to Sandra Scarr, this is an example of a n : A. Brad is an athletic boy who is on every sports team in school. These instances reflect correlations that occur when children seek out environments that they find compatible and stimulating. Topic: Active Genotype-Environment Correlations.
Which of the following is an example of a passive genotype-environment correlation? Uncooperative, distractible children receive more unpleasant and disciplinary action from parents and teachers. Outgoing children tend to seek out social contexts in which to interact with people. Parents who have a genetic predisposition to be musically inclined encourage their children to learn how to play a musical instrument.
Infants who smile more receive more attention from individuals in their social environment. The view states that development is the result of an ongoing, bidirectional interchange between heredity and the environment. Topic: Epigenetic View. Heredity-environment correlation B. Evocative genotype-environment correlation C.
Gene environment G E interaction D. Passive genotype-environment interaction. Topic: Gene X Environment Interaction. Which of the following is NOT considered an environmental influence when considering heredity-environmental interactions?
Intelligence B. Culture C. Parenting D. Topic: Heredity and Environment Interaction. Prenatal development can be divided into three periods. Which of the following is in the correct order from conception to birth? Fertile; embryonic; postterm B. Preterm; germinal; postterm C. Gestational; germinal; postnatal D. Germinal; embryonic; fetal.
Topic: Germinal Period. Rachel is in the first period of prenatal development. The is the outer layer of cells of the blastocyst that later provides nutrition and support for the embryo. Which of the following is a feature of the embryonic period of prenatal development? The creation of the fertilized egg B. Formation of the blastocyst C. The attachment of the zygote to the uterine wall D. Formation of support systems for cells. Topic: Embryonic Period. Wren is 4 weeks pregnant.
Which of the following stages of prenatal development is Wren currently in? Embryonic B. Fetal C. Placental D. It isn't too good to be true - it's Inclusive Access. Learn more about Inclusive Access here. When your students still want a book but don't want to keep it, McGraw-Hill's Textbook Rental program provides students with our latest editions at our most affordable hardcover prices. Learn more about our Textbook Rental program. By prompting students to engage with key concepts, while continually adapting to their individual needs, Connect activates learning and empowers students to take control resulting in better grades and increased retention rates.
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