Essential Genetics: A Genomics Perspective, Fourth Edition: Practice Quizzes

Bears

Title Text: Essential Genetics: A Genomics Perspective, Fourth Edition, Daniel L. Hartl and Elizabeth W. Jones

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: In birds, the male has two copis of W sex chromosome and is called
	A: Homogametic
	B: Heterogametic
	C: Homologous
	D: Heterochromatic

2: A conventional measure of goodness of fit between a set of observed numbers and theoretical expectations is known as
	A: Relative fitness
	B: Chi-square
	C: Complementation test
	D: Correlation
	E: DNA typing

3: Somatic cells of an organism normally have 40 chromosomes. What is the number of chromosomes present in the nucleus in telophase II of meiosis?
	A: 120
	B: 80
	C: 40
	D: 20
	E: 10

4: The pairing of homologous chromosomes during meiosis is known as
	A: Synapsis
	B: Crossing-over
	C: Nondisjunction
	D: Segregation
	E: Linkage

5: Hemophilia is an X-linked trait. A woman whose father suffers from hemophilia married a normal man and they have one son. What is the probability that he is affected?
	A: 0
	B: 0.25
	C: 0.5
	D: 0.75
	E: 1

6: The probability that all children in a four-children family will be girls is
	A: 0.5
	B: 0.25
	C: 0.125
	D: 0.0625
	E: 0.0312

7: What term describes the result of a statistical test in which the P value is less than 0.05?
	A: Highly improbable
	B: Highly significant
	C: Satisfactory
	D: Highly critical
	E: Statistically significant

8: A long meiotic stage lasting several days in most higher eukaryotes and is commonly divided into five substages is called
	A: Prophase I
	B: Metaphase I
	C: Anaphase I
	D: Prophase II
	E: Anaphase II

9: The mechanism of restoring the ends of a DNA molecule in a chromosome relies on the enzyme called
	A: Ligase
	B: Telomerase
	C: Taq polymerase
	D: Reverse transcriptase
	E: Topoisomerase

10: The ribosome incorporates an essential RNA molecule called
	A: mRNA
	B: Guide RNA
	C: snRNA
	D: rRNA
	E: Circular RNA

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