Exam 2: Conception, Environment, and Heredity

Which of the following statements is true about the genetic or chromosomal abnormalities that are not apparent at birth and appear later?

Chandra, a young adult, was interested in a career in research and decided to pursue it. She was very successful academically. She realized that she missed social interaction, so she decided to teach biology to high school students. The moment she entered her classroom, she knew that it was where she belonged. Which of the following terms best explains Chandra's development?

A heritability estimate of 0.5 percent indicates that

________ usually refers to the effects of similar environmental conditions on genetically different individuals.

An ovum duplicates itself repeatedly by cell division to produce all the cells that make up a baby.

Children select experiences that are consistent with their genetic tendencies. In the context of genotype-environment correlations, this best describes a(n)

In the context of infertility in women being caused by blockage of the fallopian tubes, there is a 50 percent likelihood that the tubes are blocked by scar tissue from sexually transmitted infections.

Defects transmitted by recessive genes tend to be lethal at an earlier age, in contrast to those transmitted by dominant genes as they can be passed down to the next generation by carriers.

Concordance rates for schizophrenia are highest

Which of the following terms describes the tendency of twins to share the same trait or disorder?

Which of the following is true of the sequence of bases in a gene?

A spontaneous dominant mutation known as ________ results in dwarfism.

Simone and Kumar were both 19 years old when Simone conceived for the first time. During the third month of her pregnancy, Simone suffered trauma because of her elder brother's untimely death in a tragic road accident. After carrying the baby to term, Simone gave birth to a baby boy. The baby is at an increased risk of

________ is the conventional term for a range of potential expressions of a hereditary trait.

Describe how researchers use family studies, adoption studies, and twin studies to investigate the heritability of traits.

The tendency to seek out environments compatible with one's genotype is called niche-picking.

In the context of the mechanisms of heredity, normal human females have ________ and normal human males have ________.

A neurological disorder that is characterized by loss of contact with reality; hallucinations and delusions; loss of coherent, logical thought; and inappropriate emotionality is known as

Children with Down syndrome tend to benefit cognitively, socially, and emotionally when placed in special schools rather than in regular classrooms.

Incomplete dominance is a pattern of inheritance in which certain characteristics carried on the X chromosome inherited from the mother are transmitted differently to her male and female offspring.