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ISU BIOL 100 - Exam 3 Study Guide
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BIOL 100 1st Edition Exam #3 Study GuideChapters Terms/Concepts to know:-Mutations-Meiosis &Meitosis-DNA-Punnett Squares-Pedigree -Homologous/Heterozygous-Dominant-Recessive-Alleles-X & Y chromosomes (What makes a boy/girl?)-Polymerase chain reaction (PCR)-Human Genome projectMakes sure you understand how to create a punnet square:Attached below is a study guide created by the teacher. Know not only the questions,but also the definitions used in each question. That will help you.MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answersthe question.1) The most common type of cancer that people in the United States die from is A) prostate cancer. B) breast cancer. C) skin cancer. D) lung cancer. 2) Mutations are only passed from parent to child if the mutation occurs in the gonads that will beused to produce A) telomerase. B) a gamete. C) a diploid cell. D) an autosomal cell. 3) Which of the following cells spends the most time in interphase? A) skin cells on the hands B) nerve cells in the brain C) epithelial cells lining the intestine D) mucous membrane cells in the mouth 4) During which phase of mitosis are the replicated chromosome aligned in the middle of the cell?A) anaphase B) telophase C) metaphase D) prophase 5) Nucleotides in opposing strands of DNA that bind to each other are called A) conjoined. B) sister chromatids. C) semiconservative. D) complementary. 6) What is the name of the process by which cancer cells break off of tumors and spread to other partsof the body? A) carcinogenesis B) angiogenesis C) mutagenesis D) metastasis 7) Elevated CA125 in a patient's blood may indicate ovarian cancer. However, routine screening ofCA125 levels is not practical due to which of the following reasons? A) CA 125 levels cannot be detected during certain portions of the menstrual cycle. B) CA125 levels vary among individuals. C) Only ovaries secrete CA125.D) CA125 levels are elevated only at the beginning of cancer development and then cease abruptly. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.8) ________ are places in the cell cycle where proteins survey the cell to make sure that conditions fora favorable cell division have been met. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answersthe question.9) Tetraploid organisms have four copies of each chromosome instead of the two copies that humanshave. How many copies of each chromosome end up in a gamete produced by a tetraploid organism? A) 4 B) 1 C) 3 D) 2 10) The members of a pair of nonsex chromosomes are called A) gametes. B) diploids. C) homologous chromosomes. D) alleles. 11) During which phase of mitosis do sister chromatids separate to opposite poles of the cell? A) metaphase B) telophase C) anaphase D) prophase 12) Most forms of chemotherapy target which feature of cancer cells? A) invasiveness of surrounding tissues B) metastasis C) anchorage independence D) cell division 13) Alternate forms of a gene are called A) homologues. B) gametes. C) alleles. D) chromosomes. 14) Gametes fuse together during A) embryonic development. B) meiosis. C) fertilization. D) mitosis. 15) Which of these produces genetic diversity in a population?A) mutation B) independent assortmentC) segregation D) random fertilization16) The growth and reproduction of an individual is called its A) phenotype. B) life cycle. C) normal distribution. D) genotype. 17) A heterozygous organism A) can't produce gametes. B) has two different alleles of a gene. C) has two identical alleles of a gene. D) always shows a recessive trait. 18) How many different kinds of gametes can be made by an individual with the genotype AaBb? A) 2 B) 4 C) 16 D) 8 19) How many different types of offspring (genotypes) are possible as a result of this cross, accordingto the Punnett square? A) 2 B) 4 C) 1 D) 3 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.20) An individual who has two copies of the same allele is ________ for that allele. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answersthe question.21) What can be concluded about the ability of doctorate-category sperm to help produce childrenthat are smarter than average? A) Because intelligence has no genetic basis, there's no real reason to expect children produced by this type of sperm to be smarter than average. B) There is currently no way to predict whether children produced by this type of sperm will be smarter than average. C) Children produced by this type of sperm will be smarter than average only if the mother has a high IQ. D) Children produced by this type of sperm have an approximately 72% chance of being more intelligent than average. 22) A trait that shows continuous variation is typically influenced by A) genes only. B) neither genes nor environmental factors. C) both genes and environmental factors. D) environmental factors only. 23) An individual who is a carrier for a recessive genetic disorder but does not have symptoms of thedisorder is A) homozygous for the dominant allele. B) heterozygous. C) homozygous for the recessive allele. D) either homozygous for the recessive allele or heterozygous. 24) DNA is often likened to an instruction manual. According to this analogy, the typographical errorsthat would inevitably result when the DNA "manual" is transcribed would be similar to A) recessive alleles. B) dominant alleles. C) mutations. D) homologous chromosomes. 25) What is responsible for the tortoiseshell phenotype in some female cats?A) incomplete dominance B) X inactivationC) pleiotropy D) codominance26) If one person in a population has two different alleles of a particular gene and it's known that otherpeople in the population have yet another different allele of this gene, then this is an example ofA) incomplete dominance. B) pleiotropy. C) codominance. D) multipleallelism. 27) DNA fragments must be denatured during the polymerase chain reaction due to which of the following?A) the primer must bind to a single-stranded template to synthesize double-stranded DNA B) the repeated gene sequences are not present in double-stranded DNAC) VNTRs have DNA sequences that vary in number D) Taq polymerase breaks down when heated28) Which of the following individuals doesn't have the Rh factor on their red blood cells? A) Rh- Rh+B) Rh+ Rh+C)


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ISU BIOL 100 - Exam 3 Study Guide

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