Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 16, Problem 5TYU
Summary Introduction
Introduction: DNA is the blueprint of life, which consists of genetic instructions in a cell. Any variations in the DNA may lead to genetic disorders or inherited diseases, as they are passed onto the next generation.
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An abnormality in which there is one more or one fewer than the normal number of chromosomes is called (a) a karyotype (b) a fragile site (c) an aneuploidy (d) trisomy (e) a translocation
Which of the following is least likely to produce genetic variation in the offspring of an individual?
(a) a DNA replication error caused by DNA polymerase in a body cell of the individual
(b) a cross over event during meiosis that creates a new combination of alleles in the gametes
(c) independent assortment of chromosomes during meiosis that creates a new combination of alleles in the gametes
(d) the random fertilization of an egg cell by a sperm cell during sexual reproduction
Two normal-looking fruit flies were
crossed and, in their progeny, there
were 202 females and 98 males. (i)
What is unusual about this result?
(ii) Provide a genetic explanation for
this anomaly. (iii) Provide a test of
your hypothesis.
Chapter 16 Solutions
Biology (MindTap Course List)
Ch. 16.1 - Distinguish between karyotyping and pedigree...Ch. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.1 - Prob. 1CCh. 16.1 - Prob. 2CCh. 16.1 - Describe two ways in which genome database...Ch. 16.1 - Prob. 4CCh. 16.2 - Explain how nondisjunction in meiosis is...Ch. 16.2 - Distinguish among the following structural...Ch. 16.2 - Prob. 6LO
Ch. 16.2 - VISUALIZE Draw a simple sketch illustrating how...Ch. 16.2 - Prob. 2CCh. 16.2 - Prob. 3CCh. 16.2 - Prob. 4CCh. 16.3 - State whether each of the following genetic...Ch. 16.3 - Which of the following genetic diseases is/are...Ch. 16.3 - Prob. 2CCh. 16.3 - Prob. 3CCh. 16.4 - Briefly discuss the process of gene therapy,...Ch. 16.4 - Prob. 1CCh. 16.5 - State the relative advantages and disadvantages of...Ch. 16.5 - Distinguish between genetic screening programs for...Ch. 16.5 - Prob. 1CCh. 16.5 - Prob. 2CCh. 16.6 - Prob. 11LOCh. 16.6 - Prob. 1CCh. 16.6 - CONNECT To be expressed, an autosomal recessive...Ch. 16.6 - Prob. 3CCh. 16 - Prob. 1TYUCh. 16 - An abnormality in which there is one more or one...Ch. 16 - The failure of chromosomes to separate normally...Ch. 16 - Prob. 4TYUCh. 16 - Prob. 5TYUCh. 16 - Prob. 6TYUCh. 16 - Prob. 7TYUCh. 16 - Prob. 8TYUCh. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Prob. 11TYUCh. 16 - SCIENCE, TECHNOLOGY, AND SOCIETY Imagine that you...Ch. 16 - A common belief about human genetics is that an...Ch. 16 - Prob. 14TYUCh. 16 - EVOLUTION LINK Explain some of the evolutionary...
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- E 0 Listen Match the image to the stage. Black is paternal, white is maternal ... < -19 Listen Meiosis 1 Meiosis 2 Mitosis G2 Sisters separate Spindle forms 1. Crossing Over Occurs 2. Chromosomes become less distinct, nuclear envelope reforms. Chromosomes Duplicate 3. First Cell Division Occurs lolH HH A single line of chromosomes appears in the middle of the cell 11 F Put the following in order in mitosis and the preceding interphase Hint: Determine whether the event occurs in G1, S, G2, prophase, metaphase, anaphase, telophase or cytokinesis first. Also draw the stages out. d b B d F d b Put the following steps in order during meiosis and the previous interphase. Hint: Determine which step (interphase, Meiosis 1 and Meiosis 2) they occur in and then which phase (prophase, metaphase, anaphase, telophase, cytokinesis). Also draw the stages out. B darrow_forwardHomologous chromosomes a) are formed when the chromosomes separated during anaphase b) are matching set of chromosomes that a cell receives from both parents c) carry the same alleles in the same sequence d) are a set of identical alleles that a cell receives from both parentsarrow_forwardMendelian factor (Aa) is segregated during (a) Anaphase I (b) Anaphase II (c) Diplotene (d) Zygotene/Pachytenearrow_forward
- Explain the terms: (a) aneuploidy, (b) polyploidy.arrow_forwardWhat is happening during this phase of meiosis? A.)Mitosis is complete and 4 diploid daughter cells have been produced. B.)Telophase II C.)Meiosis II is complete and 4 haploid daughter cells have been produced. D.)Meiosis I is complete and 4 diploid daughter cells have been produced E.)Meiosis II is complete and 4 diploid daughter cells have been producedarrow_forwardYou would expect to find a synaptonemal complex in a cell at (a) mitotic prophase (b) meiotic prophase I (c) meiotic prophase II (d) meiotic anaphase I (e) meiotic anaphase IIarrow_forward
- An error occurred during meiotic cell division, and a human egg has an extra copy of chromosome 21. That egg was fertilized by a normal sperm to create an embryo. This would lead to an individual A) who was tetraploid B) who would be normal in chromosomal number C) who had trisomy D) who was triploidarrow_forwardWhich of the following statements about homologous chromosomes is accurate? Select all that apply. A.)They are the same as sister chromatids. B.) They are genetically identical. C.) They pair during mitosis. D.) They pair during meiosis. E.) They are genetically similar.arrow_forwardIn a cell that has just begun the process of meiosis, as shown, what is the probability that a resulting gamete will have only maternally inherited chromosomes? (blue chromosomes are paternally inherited, red are maternally inherited) a) 1/4 b) 1/2 c) 1/8 d) 1/16 e) 1/32arrow_forward
- Which of the following is a correct statement regarding mitosis and meiosis? A.)mitosis involves the generation of haploid cells B.)meiosis is used primarily for asexual reproduction C.)chromosomes are duplicated before mitosis but not meiosis D.)meiosis involves two sequential nuclear divisionsarrow_forwardWhat is the major difference between mitosis and meiosis I in a diploid organism? A) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis I. B) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis II. C) DNA replication takes place prior to mitosis, but not before meiosis I. D) Only meiosis I results in daughter cells that contain identical genetic information.arrow_forwardThe mouse haploid genome contains about 2.9 × 109 nucleotide pairs of DNA. Indicate how many nucleotide pairs of DNA are present in each of the following mouse cells: (a) somatic cell, (b) sperm cell, (c) fertilized egg,(d) primary oocyte, (e) first polar body, (f) secondary spermatocyte.arrow_forward
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