Southern Connecticut State University CHE 121 Chapter 3 Forming a New Life 1)A baby born with cognitive disabilities, heart problems, and facial and limb deformities probably had a mother who engaged in          during her pregnancy

Southern Connecticut State University

CHE 121

Chapter 3 Forming a New Life

1)A baby born with cognitive disabilities, heart problems, and facial and limb deformities probably had a mother who engaged in          during her pregnancy.

marijuana use along with some tobacco use cocaine use

heavy alcohol consumption caffeine use

QUESTION 2

A couple’s genetic counselor shows them magnified photographs of each parent’s chromosomes arranged on a chart according to size and structure. What is this chart called?

Allele typing Phenotype Gamete analysis Karyotype

QUESTION 3

A factor that increases the probability of having a baby with Down syndrome is

increased age of mother or father. parents’ use of tobacco.

parents’ use of alcohol.

a defective XY chromosome pattern.

QUESTION 4

A fertilized ovum is also called a(n)

embryo. zygote. fetus. morphogen.

A hereditary characteristic that is carried by an individual but is NOT expressed in that individual’s phenotype is

recessive.

partially dominant. homozygous. regressive.

QUESTION 6

A person’s genotype may INCLUDE the ability for musical giftedness. Which of the following experiences will encourage the expression of that musical talent?

Good nutrition on the part of the mother Access to musical instruments/lessons Lack of interest in music

Parents who have musical interest or talent

QUESTION 7

A person’s observable characteristics are his or her

alleles.

genetic imprint. phenotype genotype.

QUESTION 8

A pregnant woman’s use of cocaine or methamphetamines increases the risk to her fetus of all of the following EXCEPT

miscarriage. premature birth. obesity.

low birth weight.

QUESTION 9

A procedure that can be used within the first trimester of pregnancy to test fetal cells for defective conditions is

amniocentesis. chorionic villus sampling. maternal blood test.

All of these

A process by which non-sex cells divide in half over and over again is

meiosis. mitosis. menstruation.

multiple splitosis.

QUESTION 11

A psychological disorder marked by loss of contact with reality and demonstrating such symptoms as hallucinations and delusions, which also seems to have a strong genetic component, is

neuroticism. depression. schizophrenia. mental retardation.

QUESTION 12

A researcher compares monozygotic and dizygotic twins for their level of similarity on a trait. This researcher is attempting to determine the     of the trait activity levels.

teratogenesis genotype karyotype heritability

QUESTION 13

A statistical estimate of how much contribution heredity makes toward individual differences in a specific trait at a certain time within a given population is referred to as

inheritance heritability. heredity. genetics.

QUESTION 14

A strongly canalized trait is one that

is easily influenced by environmental conditions. is affected little by environmental conditions. only appears in certain situations.

has a large reaction range.

A woman’s “fertile window” is typically between the      of the menstrual cycle.

6th and 21st days 14th and 15th days 25th and 28th days 1st and 2nd month

QUESTION 16

A zygote is created when a sperm and an egg combine in the fallopian tube to form a single cell.

This process is referred to as

implantation. ovulation. fertilization. menstruation.

QUESTION 17

According to the American Academy of Pediatrics, which medication is recommended to pregnant or breastfeeding women?

Tylenol Advil Caffeine

None of these

QUESTION 18

According to the text, approximately how many extra calories should a woman consume each day during pregnancy?

50–200

300–500

700–900

More than 1,000

QUESTION 19

According to the text, most research reported so far has shown that the use of marijuana during pregnancy

produces no detectable birth defects.

is much more damaging to a fetus than alcohol. may produce neurological disturbances.

may lead to babies who are themselves addicted.

According to your text, complex normal behavior is the result of

dominant inheritance. recessive inheritance. genetic cohesion. polygenic inheritance.

QUESTION 21

According to your text, the human genome, which contains the complete sequence of genes in the human body, is analogous to

a library.

a gymnasium. a cafeteria.

the entire school.

QUESTION 22

According to your text, when does development start?

At conception At birth

In infancy

During adolescence

QUESTION 23

Adoption studies of intelligence indicate that

environment is a very small factor. environment is more important than heredity.

environment has some impact, but less so than heredity. genetic influence is very slight.

QUESTION 24

All of the following have been used to prevent, detect, and treat HIV in infants EXCEPT

the drug AZT.

having a vaginal birth.

women with HIV not breastfeeding their babies. use of drugs to treat AIDS-related pneumonia.

Although Jean-Paul’s adoptive parents are quite short, he is growing to be quite tall like his biological mother.