Chapter 1, Problem 23MC

Variation in _____ is the basis of variation in traits. a. karyotype b. the DNA sequence c. the double helix d. chromosome number

A chromosome contains many different gene regions that are transcribed into different ________. a. proteins c. RNAs b. polypeptides d. DNA strands

A recognized set of symptoms that characterize a genetic disorder is a(n) _______. a. syndrome b. disease c. abnormality d. inheritance pattern

What kind of diseases are studied using genome-wide association studies? a. viral diseases b. single-gene inherited diseases c. diseases caused by multiple genes d. diseases caused by environmental factors

Figure 1.7 Decide if each of the following is an example of inductive or deductive reasoning. All flying birds and insects have wings. Birds and insects flap their wings as they move through the air. Therefore, wings enable flight. Insects generally survive mild winters better than harsh ones. Therefore, insect pests will become more problematic if global temperatures increase. Chromosomes, the carriers of DNAr separate into daughter cells during cell division. Therefore, each daughter cell will have the same chromosome set as the mother cell. Animals as diverse as humans, insects, and wolves all exhibit social behavior. Therefore, social behavior must have an evolutionary advantage.

The cell wall is ___________ . interior to the cell membrane exterior to the cell membrane a part of the cell membrane interior or exterior depending on the particular cell

SCIENCE, TECHNOLOGY, AND SOCIETY Imagine that you are a genetic counselor. What advice or suggestions might you give in the following situations? (a) A couple has come for advice because the woman had a sister who died of Tay-Sachs disease. (b) A young man and woman who are not related are engaged to be married. However, they have learned that the mans parents are first cousins, and they are worried about the possibility of increased risk of genetic defects in their own children. (c) A young womans paternal uncle (her fathers brother) has hemophilia A. Her father is free of the disease, and there has never been a case of hemophilia A in her mothers family. Should she be concerned about the possibility of hemophilia A in her own children? (d) A 20-year-old man is seeking counseling because his father was recently diagnosed with Huntingtons disease. (e) A 45-year-old woman has just been diagnosed with Huntingtons disease. She says she will not tell her college-age sons because of the burden it will place on them. Given that the woman, not her sons, is your client, do you have a duty to inform the sons? Explain your reasoning.

An organism s traits are determined by the specific combination of inherited. cells. genes. proteins. chromatids.

The diagram to the right shows how tiles can be put together in different ways. How does this example relate to the role of DNA as the universal genetic material in organisms?